Search for Leptoquarks and FCNC in $e^{+} e^{-}$ annihilations at $\sqrt{s}$=183 GeV (2006)
Abreu, P., Adam, W., Adye, T., Adzic, P., Aldeweireld, T., Alekseev, G D., ...
A search for events with one jet and at most one isolated leptonused data taken at LEP-2 by the DELPHI detector.These data were accumulated at a center-of-mass energy of183 GeV and correspond to an...
Search for Leptoquarks and FCNC in $e^{+} e^{-}$ annihilations at $\sqrt{s}$=183 GeV (2006)
Abreu, P., Adam, W., Adye, T., Adzic, P., Aldeweireld, T., Alekseev, G D., ...
A search for events with one jet and at most one isolated leptonused data taken at LEP-2 by the DELPHI detector.These data were accumulated at a center-of-mass energy of183 GeV and correspond to an...
Search for Leptoquarks and FCNC in $e^{+} e^{-}$ annihilations at $\sqrt{s}$=183 GeV (2006)
Abreu, P., Adam, W., Adye, T., Adzic, P., Aldeweireld, T., Alekseev, G D., ...
A search for events with one jet and at most one isolated leptonused data taken at LEP-2 by the DELPHI detector.These data were accumulated at a center-of-mass energy of183 GeV and correspond to an...
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
\newcommand{\cacf} {\ifmmode{C_A/C_F} \else{$C_A/C_F$}\fi} Data collected at the Z resonance using the DELPHI detector at LEP are used to determine the charged hadron multiplicity in gluon and quark...
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
\newcommand{\cacf} {\ifmmode{C_A/C_F} \else{$C_A/C_F$}\fi} Data collected at the Z resonance using the DELPHI detector at LEP are used to determine the charged hadron multiplicity in gluon and quark...
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
\newcommand{\cacf} {\ifmmode{C_A/C_F} \else{$C_A/C_F$}\fi} Data collected at the Z resonance using the DELPHI detector at LEP are used to determine the charged hadron multiplicity in gluon and quark...
Search for charginos nearly mass-degenerate with the lightest neutralino (2006)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
A search for charginos with masses close to the mass of the lightest neutralino is reported, based on the data collected with the DELPHI detector at LEP from 1995 to 1997 at centre-of-mass energies...
Abreu, P., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., Alekseev, G D., ...
A measurement of the forward--backward asymmetry of $e^{+}e^{-} \to c\bar{c}$ and $e^{+}e^{-} \to b\bar{b}$ on the $Z$ resonance is performed using about 3.5 million hadronic $Z$ decays collected by...
Abreu, P., Adam, W., Adye, T., Adzic, P., Aldeweireld, T., Alekseev, G D., ...
Promptly decaying lightest neutralinos and long-lived staus are searched for in the context of light gravitino scenarios. It is assumed that the stau is the next to lightest supersymmetric particle...
Abreu, P., Adam, W., Adye, T., Adzic, P., Aldeweireld, T., Alekseev, G D., ...
Promptly decaying lightest neutralinos and long-lived staus are searched for in the context of light gravitino scenarios. It is assumed that the stau is the next to lightest supersymmetric particle...
Abreu, P., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., Alekseev, G D., ...
A measurement of the forward--backward asymmetry of $e^{+}e^{-} \to c\bar{c}$ and $e^{+}e^{-} \to b\bar{b}$ on the $Z$ resonance is performed using about 3.5 million hadronic $Z$ decays collected by...
Search for charginos nearly mass-degenerate with the lightest neutralino (2006)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
A search for charginos with masses close to the mass of the lightest neutralino is reported, based on the data collected with the DELPHI detector at LEP from 1995 to 1997 at centre-of-mass energies...
Abreu, P., Adam, W., Adye, T., Adzic, P., Aldeweireld, T., Alekseev, G D., ...
Promptly decaying lightest neutralinos and long-lived staus are searched for in the context of light gravitino scenarios. It is assumed that the stau is the next to lightest supersymmetric particle...
Abreu, P., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., Alekseev, G D., ...
A measurement of the forward--backward asymmetry of $e^{+}e^{-} \to c\bar{c}$ and $e^{+}e^{-} \to b\bar{b}$ on the $Z$ resonance is performed using about 3.5 million hadronic $Z$ decays collected by...
Search for charginos nearly mass-degenerate with the lightest neutralino (2006)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
A search for charginos with masses close to the mass of the lightest neutralino is reported, based on the data collected with the DELPHI detector at LEP from 1995 to 1997 at centre-of-mass energies...
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
The cross-sections for the production of single charged and neutral intermediate vector bosons were measured using integrated luminosities of 52~pb$^{-1}$ and 154~pb$^{-1}$ collected by the DELPHI...
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
The cross-sections for the production of single charged and neutral intermediate vector bosons were measured using integrated luminosities of 52~pb$^{-1}$ and 154~pb$^{-1}$ collected by the DELPHI...
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
The cross-sections for the production of single charged and neutral intermediate vector bosons were measured using integrated luminosities of 52~pb$^{-1}$ and 154~pb$^{-1}$ collected by the DELPHI...
Precision Electroweak Measurements on the Z Resonance (2005)
Schael, S, Barate, R, Brunelière, R, Buskulic, Damir, De Bonis, I, Décamp, D, ...
We report on the final electroweak measurements performed with data taken at the Z resonance by the experiments operating at the electron-positron colliders SLC and LEP. The data consist of 17...
Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Albrecht, Z, ...
Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Albrecht, Z, ...
The cross-sections for the production of single charged and neutral intermediate vector bosons were measured using integrated luminosities of 52~pb$^{-1}$ and 154~pb$^{-1}$ collected by the DELPHI...
Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Albrecht, Z, ...
The cross-sections for the production of single charged and neutral intermediate vector bosons were measured using integrated luminosities of 52~pb$^{-1}$ and 154~pb$^{-1}$ collected by the DELPHI...
A Measurement of the Tau Topological Branching Ratios (2001)
Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, ...
Using data collected in the DELPHI detector at LEP-1, measurements of the inclusive tau branching ratios for decay modes containing one, three, or five charged particles have been performed, giving...
Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, ...
A measurement of the W mass and width has been performed by the DELPHI collaboration using the data collected during 1998. The data sample has an integrated luminosity of 155 pb^{-1} and an average...
Search for a fermiophobic Higgs at LEP 2 (2001)
Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Albrecht, Z, ...
Higgs bosons predicted by the fermiophobic scenario within Two Higgs Doublets Models were searched for in the data collected by the DELPHI detector at centre-of-mass energies between 189 GeV and 202...
Measurement of $V_{cb}$ from the decay process $\bar{B^0} \to D^{*+} \ell^- \bar{\nu}$ (2001)
Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, ...
A new precise measurement of |V_{cb}| and of the branching ratio BR(\bar{B^0} -> D^{*+} \ell^- \bar{\nu_\ell}) has been performed using a sample of about 5000 semileptonic decays \bar{B^0} -> D^{*+}...
Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, ...
A more general MSSM parameter scan is described
Search for the Standard Model Higgs boson at LEP in the year 2000 (2001)
Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, ...
Searches for the Standard Model Higgs boson have been performed in the data collected by the DELPHI experiment at LEP in the year 2000 at centre-of-mass energies between 200 and...
Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, ...
Measurements of the trilinear gauge boson couplings $WW\gamma$ and $WWZ$ are presented using the data taken by DELPHI in 1998 at a centre-of-mass energy of 189~GeV and combined with DELPHI data at...
Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, ...
An update of the search for sleptons, neutralinos and charginos in the context of scenarios where the lightest supersymmetric particle is the gravitino and the next-to-lightest supersymmetric...
Search for sleptons in $e^+ e^-$ collisions at $\sqrt{s}$= 183 to 189 GeV (2001)
Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Albrecht, Z, ...
Data taken by the {\tt DELPHI} experiment at centre-of-mass energies of 183~\GeV\ and 189~\GeV\ with a total integrated luminosity of 212 pb$^{-1} have been used to search for the supersymmetric...
A Measurement of the Tau Topological Branching Ratios (2001)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
Using data collected in the DELPHI detector at LEP-1, measurements of the inclusive tau branching ratios for decay modes containing one, three, or five charged particles have been performed, giving...
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
A measurement of the W mass and width has been performed by the DELPHI collaboration using the data collected during 1998. The data sample has an integrated luminosity of 155 pb^{-1} and an average...
Measurement of V$_{cb}$ from the decay process $\bar{B^0}$ - D$^{*+} \ell^- \bar{\nu}$ (2001)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
A new precise measurement of |V_{cb}| and of the branching ratio BR(\bar{B^0} -> D^{*+} \ell^- \bar{\nu_\ell}) has been performed using a sample of about 5000 semileptonic decays \bar{B^0} -> D^{*+}...
Search for neutralino pair production at $\sqrt{s}$ = 189 GeV (2001)
Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...
A search for pair-production of neutralinos at a LEP centre-of-mass energy of 189 GeV gave no evidence for a signal. This limits the neutralino production cross-section and excludes regions in the...
Search for a fermiophobic Higgs at LEP 2 (2001)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
Higgs bosons predicted by the fermiophobic scenario within Two Higgs Doublets Models were searched for in the data collected by the DELPHI detector at centre-of-mass energies between 189 GeV and 202...
Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...
Muon pair production in the process $e^+e^-\to e^+e^-\mu^+\mu^-$ is studied using the data taken at LEP1 ($\sqrt{s}\simeq m_Z$) with the DELPHI detector during the years 1992-1995. The corresponding...
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
An update of the search for sleptons, neutralinos and charginos in the context of scenarios where the lightest supersymmetric particle is the gravitino and the next-to-lightest supersymmetric...
Search for Spontaneous R-parity violation at $\sqrt{s}$ = 183 GeV and 189 GeV (2001)
Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...
Searches for spontaneous $R$-parity violating signals at $\sqrt{s}=183$\,GeV and \mbox{$\sqrt{s}=189$\,GeV} have been performed using 1997 and 1998 DELPHI data, under the assumption of $R$-parity...
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
Measurements of the trilinear gauge boson couplings $WW\gamma$ and $WWZ$ are presented using the data taken by DELPHI in 1998 at a centre-of-mass energy of 189~GeV and combined with DELPHI data at...
Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...
Searches for pair production of gauginos and squarks in $e^{+} e^{-}$ collisions at a centre-of-mass energy of 189 GeV have been performed on data corresponding to an integrated luminosity of 158...
Measurement of the ZZ cross-section in $e^+ e^-$ interactions at 183-189 GeV (2001)
Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...
Measurements of on-shell $ZZ$ production are described, using data collected by DELPHI in 1997 and 1998, at centre-of-mass energies $\sqrt s$ = 182.6 GeV and 188.6 GeV respectively. Results obtained...
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
An update of the search for sleptons, neutralinos and charginos in the context of scenarios where the lightest supersymmetric particle is the gravitino and the next-to-lightest supersymmetric...
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
A measurement of the W mass and width has been performed by the DELPHI collaboration using the data collected during 1998. The data sample has an integrated luminosity of 155 pb^{-1} and an average...
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
A Measurement of the Tau Topological Branching Ratios (2001)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
Using data collected in the DELPHI detector at LEP-1, measurements of the inclusive tau branching ratios for decay modes containing one, three, or five charged particles have been performed, giving...
Measurement of V$_{cb}$ from the decay process $\bar{B^0}$ - D$^{*+} \ell^- \bar{\nu}$ (2001)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
A new precise measurement of |V_{cb}| and of the branching ratio BR(\bar{B^0} -> D^{*+} \ell^- \bar{\nu_\ell}) has been performed using a sample of about 5000 semileptonic decays \bar{B^0} -> D^{*+}...
Search for neutralino pair production at $\sqrt{s}$ = 189 GeV (2001)
Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...
A search for pair-production of neutralinos at a LEP centre-of-mass energy of 189 GeV gave no evidence for a signal. This limits the neutralino production cross-section and excludes regions in the...
Search for a fermiophobic Higgs at LEP 2 (2001)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
Higgs bosons predicted by the fermiophobic scenario within Two Higgs Doublets Models were searched for in the data collected by the DELPHI detector at centre-of-mass energies between 189 GeV and 202...
Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...
Muon pair production in the process $e^+e^-\to e^+e^-\mu^+\mu^-$ is studied using the data taken at LEP1 ($\sqrt{s}\simeq m_Z$) with the DELPHI detector during the years 1992-1995. The corresponding...
Search for Spontaneous R-parity violation at $\sqrt{s}$ = 183 GeV and 189 GeV (2001)
Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...
Searches for spontaneous $R$-parity violating signals at $\sqrt{s}=183$\,GeV and \mbox{$\sqrt{s}=189$\,GeV} have been performed using 1997 and 1998 DELPHI data, under the assumption of $R$-parity...
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
Measurements of the trilinear gauge boson couplings $WW\gamma$ and $WWZ$ are presented using the data taken by DELPHI in 1998 at a centre-of-mass energy of 189~GeV and combined with DELPHI data at...
Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...
Searches for pair production of gauginos and squarks in $e^{+} e^{-}$ collisions at a centre-of-mass energy of 189 GeV have been performed on data corresponding to an integrated luminosity of 158...
Measurement of the ZZ cross-section in $e^+ e^-$ interactions at 183-189 GeV (2001)
Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...
Measurements of on-shell $ZZ$ production are described, using data collected by DELPHI in 1997 and 1998, at centre-of-mass energies $\sqrt s$ = 182.6 GeV and 188.6 GeV respectively. Results obtained...
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
An update of the search for sleptons, neutralinos and charginos in the context of scenarios where the lightest supersymmetric particle is the gravitino and the next-to-lightest supersymmetric...
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
A measurement of the W mass and width has been performed by the DELPHI collaboration using the data collected during 1998. The data sample has an integrated luminosity of 155 pb^{-1} and an average...
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
A Measurement of the Tau Topological Branching Ratios (2001)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
Using data collected in the DELPHI detector at LEP-1, measurements of the inclusive tau branching ratios for decay modes containing one, three, or five charged particles have been performed, giving...
Measurement of V$_{cb}$ from the decay process $\bar{B^0}$ - D$^{*+} \ell^- \bar{\nu}$ (2001)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
A new precise measurement of |V_{cb}| and of the branching ratio BR(\bar{B^0} -> D^{*+} \ell^- \bar{\nu_\ell}) has been performed using a sample of about 5000 semileptonic decays \bar{B^0} -> D^{*+}...
Search for neutralino pair production at $\sqrt{s}$ = 189 GeV (2001)
Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...
A search for pair-production of neutralinos at a LEP centre-of-mass energy of 189 GeV gave no evidence for a signal. This limits the neutralino production cross-section and excludes regions in the...
Search for a fermiophobic Higgs at LEP 2 (2001)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
Higgs bosons predicted by the fermiophobic scenario within Two Higgs Doublets Models were searched for in the data collected by the DELPHI detector at centre-of-mass energies between 189 GeV and 202...
Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...
Muon pair production in the process $e^+e^-\to e^+e^-\mu^+\mu^-$ is studied using the data taken at LEP1 ($\sqrt{s}\simeq m_Z$) with the DELPHI detector during the years 1992-1995. The corresponding...
Search for Spontaneous R-parity violation at $\sqrt{s}$ = 183 GeV and 189 GeV (2001)
Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...
Searches for spontaneous $R$-parity violating signals at $\sqrt{s}=183$\,GeV and \mbox{$\sqrt{s}=189$\,GeV} have been performed using 1997 and 1998 DELPHI data, under the assumption of $R$-parity...
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
Measurements of the trilinear gauge boson couplings $WW\gamma$ and $WWZ$ are presented using the data taken by DELPHI in 1998 at a centre-of-mass energy of 189~GeV and combined with DELPHI data at...
Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...
Searches for pair production of gauginos and squarks in $e^{+} e^{-}$ collisions at a centre-of-mass energy of 189 GeV have been performed on data corresponding to an integrated luminosity of 158...
Measurement of the ZZ cross-section in $e^+ e^-$ interactions at 183-189 GeV (2001)
Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...
Measurements of on-shell $ZZ$ production are described, using data collected by DELPHI in 1997 and 1998, at centre-of-mass energies $\sqrt s$ = 182.6 GeV and 188.6 GeV respectively. Results obtained...
Measurement of the Tau topological branching ratios (2001)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
Using data collected in the DELPHI detector at LEP-1, measurements of the inclusive T branching ratios for decay modes containing one, three, or five charged particles have been performed, giving the...
Measurement of the mass and width of the W boson in e(+)e(-) collisions at root s=189 GeV (2001)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
A measurement of the FV mass and width has been performed by the DELPHI Collaboration using the data collected during 1998. The data sample has an integrated luminosity of 155 pb(-1) and an average...
Abreu, P., Adam, W., Adyc, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
The semileptonic branching fractions for primary and cascade b decays BR(b → l(-)), BR(b → c → l(+)) and BR(b → (c) over bar → l(-) were measured in hadronic Z decays collected by the...
Measurement of the ZZ cross-section in e(+)e(-) interactions at 183-189 GeV (2001)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
Measurements of on-shell ZZ production are described, using data collected by DELPHI in 1997 and 1998, at centre-of-mass energies roots = 182.6 GeV and 188.6 GeV, respectively. Results obtained in...
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
Measurements of the trilinear gauge boson couplings WW gamma and WWZ are presented using the data taken by DELPHI in 1998 at a centre-of-mass energy of 189 GeV and combined with DELPHI data at 183...
Measurement of V-cb from the decay process (B)over-bar(0)→ D(*+)l(-)(nu)over-bar (2001)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
A new precise measurement of \V-cb\ and of the branching ratio BR([(Bover bar](0)→ D(+*)l(-)[([nu])over bar](l)) has been performed using a sample of about 5000 semileptonic decays (B) over bar (0)...
Search for a fermiophobic Higgs at LEP 2 (2001)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
Higgs bosons predicted by the fermiophobic scenario within Two Higgs Doublers Models were searched for in the data collected by the DELPHI detector at centre-of-mass energies between 189 GeV and 202...
Search for neutralino pair production at root s = 189 GeV (2001)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
A search for pair-production of neutralinos at a LEP centre-of- mass energy of 189 GeV gave no evidence for a signal. This limits the neutralino production cross-section and excludes regions in the...
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
Searches for pair production of gauginos and squarks in e(+)e(- ) collisions at a centre-of-mass energy of 189 GeV have been performed on data corresponding to an integrated luminosity of 158 pb(-1)...
Search for sleptons in e(+)e(-) collisions at root s=183 to 189 GeV (2001)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
Data taken by the DELPHI experiment at centre-of-mass energies of 183 GeV and 189 GeV with a total integrated luminosity of 212 pb(-1) have been used to search for the supersymmetric partners of the...
Search for spontaneous R-parity violation at root s=183 GeV and 189 GeV (2001)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
Searches for spontaneous R-parity-violating signals at roots = 183 GeV and roots = 189 GeV have been performed using the 1997 and 1998 DELPHI data, under the assumption of R-parity breaking in the...
Search for the Standard Model Higgs boson at LEP in the year 2000 (2001)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
Searches for the Standard Model Higgs boson have been performed in the data collected by the. DELPHI experiment at LEP in the year 2000 at centre-of-mass energies between 200 and 209 GeV...
Single intermediate vector boson production in e(+)e(-) collisions at root s=183 and 189 GeV (2001)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
The cross sections for the production of single charged and neutral intermediate vector bosons were measured using integrated luminosities of 52 pb(-1) and 154 pb(-1) collected by the experiment at...
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
Muon pair production in the process e(+)e(-) → e(+)e(-)mu (+)mu (-) is studied using the data taken at LEP1 (roots similar or equal to m(Z)) with the DELPHI detector during the years 1992-1995. The...
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
An update of the search for sleptons, neutralinos and charginos in the context of scenarios where the lightest supersymmetric particle is the gravitino and the next-to-lightest supersymmetric...
Search for neutralino pair production at $\sqrt{s}$ = 189 GeV (2000)
Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Albrecht, Z, ...
A search for pair-production of neutralinos at a LEP centre-of-mass energy of 189 GeV gave no evidence for a signal. This limits the neutralino production cross-section and excludes regions in the...
Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Albrecht, Z, ...
Muon pair production in the process $e^+e^-\to e^+e^-\mu^+\mu^-$ is studied using the data taken at LEP1 ($\sqrt{s}\simeq m_Z$) with the DELPHI detector during the years 1992-1995. The corresponding...
Measurement of the ZZ cross-section in $e^+ e^-$ interactions at 183-189 GeV (2000)
Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Albrecht, Z, ...
Measurements of on-shell $ZZ$ production are described, using data collected by DELPHI in 1997 and 1998, at centre-of-mass energies $\sqrt s$ = 182.6 GeV and 188.6 GeV respectively. Results obtained...
Search for Spontaneous R-parity violation at $\sqrt{s}$ = 183 GeV and 189 GeV (2000)
Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, ...
Searches for spontaneous $R$-parity violating signals at $\sqrt{s}=183$\,GeV and \mbox{$\sqrt{s}=189$\,GeV} have been performed using 1997 and 1998 DELPHI data, under the assumption of $R$-parity...
Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Albrecht, Z, ...
Searches for pair production of gauginos and squarks in $e^{+} e^{-}$ collisions at a centre-of-mass energy of 189 GeV have been performed on data corresponding to an integrated luminosity of 158...
Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, ...
Searches for {\mbox{$ {\mathrm H} {\mathrm Z} $}} production d with the Higgs boson decaying into an invisible final state have been performedd the data collected by the DELPHI experimentd up to the...
Search for the sgoldstino at $\sqrt{s}$ from 189 to 202 GeV (2000)
Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, ...
A search for the supersymmetric partner of the goldstino, the sgoldstino S, at LEP2 is presented. The production S$\gLWahlen, H
Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Albrecht, Z, ...
The combination of these results with those obtained using $\mathrm{\rm{D}_{s}^{\pm}} \ell^{\mp}$ sample gives: %\cite{ref:dsl} \bes \ba{c} \dms > 4.9~\mbox{ps}^{-1}~\mbox{at the 95\% C.L.} \\...
Search for supersymmetric partners of top and bottom quarks at $\sqrt{s}$= 189 GeV (2000)
Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Albrecht, Z, ...
Searches for supersymmetric partners of top and bottom quarks are presented using data taken by the DELPHI experiment at LEP in 1997 and 1998. No deviations from standard model expectations are...
Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, ...
A test of the QED process \eeintogg(\fot) is reported. The data analysed were collected with the DELPHI detector in 1998 and 1999 at the highest ener\-gies achieved at LEP, reaching 202 GeV in the...
Limits on the Masses of Supersymmetric Particles at $\sqrt{s}$=189 GeV (2000)
Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Albrecht, Z, ...
Searches for charginos, neutralinos and sleptons at LEP2 centre-of-mass energies from 130 GeV to 189 GeV have been used to set lower limits on the mass of the Lightest Supersymmetric Particle and...
Rapidity-Rank Structure of $p\overline{p}$ Pairs in Hadronic $Z^{0}$ Decays (2000)
Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Albrecht, Z, ...
The rapidity-rank structure of \ppb pairs is used to analyze the mechanism of baryon production in hadronic \zz decay. The relative occurrence of the rapidity-ordered configuration \pmpb, where $M$...
Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, ...
Lifetime and oscillations of $\Bs$ mesons have been studied in eventswith a large transverse momentum lepton and a $\Ds$ of opposite electric charge>the same hemisphere, selected from about 3.6...
Search for SUSY with R-parity violating $LL\overline{E}$ couplings at $\sqrt{s}$=189 GeV (2000)
Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, ...
Searches for pair production of supersymmetric particlesunder the assumption that $R$--parity is not conserved are presented,based on data recorded by the DELPHI detector in 1998from e$^{+}$e$^{-}$...
Update of the search for charginos nearly mass-degenerate with the lightest neutralino (2000)
Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Albrecht, Z, ...
The data collected by DELPHI in 1998 at the centre-of-mass energy of 189~GeVhave been used to update the search for charginos nearly mass-degenerate withthe lightest supersymmetric particle, which is...
Measurement and Interpretation of Fermion-Pair Production at LEP Energies of 183 and 189 GeV (2000)
Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, ...
An analysis of the data collected in 1997 and 1998 with the DELPHIdetector at $e^+e^-$ collision energies close to 183 and 189GeV was performed in order to extract the hadronic and leptonic...
Cross-Sections and Leptonic Forward-Backward Asymmetries from the $Z^0$ Running of LEP (2000)
Abreu, P, Adam, W, Adye, T, Adzic, P, Alekseev, G D, Alemany, R, ...
During 1993 and 1995 LEP was run at 3 energies near the Z$^0$ peak in order to give improved measurements of the mass and width of the resonance. During 1994, LEP operated only at the Z$^0$peak. In...
Measurement of the $\overline{B} \to D^{(*)}\pi l\overline{\nu}_l$ Branching Fraction (2000)
Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Albrecht, Z, ...
A study of $b$ semileptonic decays into $D$, $D\pi^{\pm}$ and $D^*\pi^{\pm}$ final states is presented.The $D^0$, $D^+$ and $D^{*+}$ mesons are exclusively reconstructed in $Z$ decay data recorded...
Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, ...
The cross-section for the process $e^+e^-\rightarrow W^+W^-$has been measured with the data sample collected by DELPHIat an average centre-of-mass energy of 189~GeV andcorresponding to an integrated...
Searches for Neutral Higgs Bosons in $e^+ e^-$ Collisions around $\sqrt{s}$ = 189 GeV (2000)
Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, ...
Searches for neutral Higgs bosons in the Standard Model and the MSSM havebeen performed using data collected by the DELPHI experiment at acentre-of-mass energy of 188.7 GeV, corresponding toan...
A Study of the Lorentz Structure in $\tau$ Decays (2000)
Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, ...
This paper describes a measurement of the Michel parameters, $\eta$, $\rho$, $\xi$, $\xi \delta$, and the average $\nu_{\tau}$helicity, $h_{\nu_{\tau}}$, in $\tau$ lepton decays together withthe...
Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, ...
A search for stable and long-lived heavy charged particles was performed using the data taken by the DELPHI experiment at an energy of 189 GeV. The Cherenkov light detected in the Ring Imaging...
Determination of |$V_{ub}$|/|$V_{cb}$| with DELPHI at LEP (2000)
Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, ...
The ratio of the CKM quark-mixing matrix elements |V_{ub}|/|V_{cb}|has been measured using B hadron semileptonic decays.The analysis is based on a novel technique, recently proposed by theoreticians,...
Photon Events with Missing Energy at $\sqrt{s}$= 183 to 189 GeV (2000)
Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Albrecht, Z, ...
The production of single photons has been studiedin the reaction e+e- --> gamma+ invisible particles at centre-of-mass energies of 183~GeV and 189~GeV.A previously published analysis of events with...
Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, ...
Inclusive distributions of charged particles in hadronic Wdecays are experimentally investigated using the statisticscollected by the DELPHI experiment at LEP during 1997, 1998and 1999, at...
Search for supersymmetric particles in scenarios with gravitino LSP and stau NLSP (2000)
Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, ...
Sleptons, neutralinos and charginos were searched for in the context of scenarios where the lightest supersymmetric particle isthe gravitino.It was assumed that the stau is the next-to-lightest...
Identified Charged Particles in Quark and Gluon Jets (2000)
Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, ...
A sample of 2.2 million hadronic \z decays, selected fythe {\sc Delphi} detector at {\sc Lep} during 1994-199nimprovedmeasurement of inclusive distributions of \pie, \kp anrantiparticles in gluon and...
Search for charginos in $e^+ e^-$ interactions at $\sqrt{s}$= 189 GeV (2000)
Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Albrecht, Z, ...
An update of the searches for charginos and gravitinodon a data sample corresponding to the 158 pb$^{-1}$ rIdetector in 1998, at a centre-of-mass energy of 18asignal was found. The lower mass limits...
Inclusive $\Sigma^{-}$ and $\Lambda(1520)$ production in hadronic Z decays (2000)
Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Albrecht, Z, ...
Production of $\sm$ and $\lft$ in hadronic Z decays has been measuredusing the \delphi detector at \lep. The $\sm$ is directly reconstructed as acharged track in the \delphi microvertex detector and...
Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, ...
The DELPHI detector at LEP has collected 54 pb$^{-1}$ of dataat a centre-of-mass energy around 183 GeV during 1997,158 pb$^{-1}$ around 189 GeV during 1998,and 187 pb$^{-1}$ between 192 and 200 GeV...
Consistent Measurements of $\alpha_{s}$ from Precise Oriented Event Shape Distributions (2000)
Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, ...
An updated analysis using about 1.5 million events recorded at $\sqrt{s} =M_Z$ with the DELPHI detector in 1994 is presented. Eighteen infrared and collinear safe event shape observables are measured...
$\Lambda_{b}$ polarization in $Z^{0}$ decays at LEP (2000)
Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Albrecht, Z, ...
Abreu, P, Adam, W, Adye, T, Adzic, P, Alekseev, G D, Alemany, R, ...
Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...
Oscillations of $\mbox{B}^0_{\mathrm{s}}$ mesons have been studied in samples selected from about 3.5 million hadronic $\Zz$ decays detected by DELPHI betwee. One analysis uses events in the...
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
Inclusive distributions of charged particles in hadronic Wdecays are experimentally investigated using the statisticscollected by the DELPHI experiment at LEP during 1997, 1998and 1999, at...
Search for supersymmetric partners of top and bottom quarks at $\sqrt{s}$ = 189 GeV (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
Searches for supersymmetric partners of top and bottom quarks are presented using data taken by the DELPHI experiment at LEP in 1997 and 1998. No deviations from standard model expectations are...
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
Using the data sample of hadronic $Z^0$ decays collected by the DELPHI experiment in the 1992-1995 LEP1 period, the leptonic decay of the charged $B$ mesons (\btauex) has been studied. The analysis...
Search for the sgoldstino at $\sqrt{s}$ from 189 to 202 GeV (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
A search for the supersymmetric partner of the goldstino, the sgoldstino S, at LEP2 is presented. The production S$\gamma$ followed by S decay into two gluons or into two photons was studied at 189 -...
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
Searches for {\mbox{$ {\mathrm H} {\mathrm Z} $}} production d with the Higgs boson decaying into an invisible final state have been performedd the data collected by the DELPHI experimentd up to the...
Searches for Neutral Higgs Bosons in $e^+ e^-$ Collisions around $\sqrt{s}$ = 189 GeV (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
Searches for neutral Higgs bosons in the Standard Model and the MSSM havebeen performed using data collected by the DELPHI experiment at acentre-of-mass energy of 188.7 GeV, corresponding toan...
Identified Charged Particles and Resonances in Quark and Gluon Jets (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
A sample of 2.2 million hadronic \z decays, selected fythe {\sc Delphi} detector at {\sc Lep} during 1994-199nimprovedmeasurement of inclusive distributions of \pie, \kp anrantiparticles in gluon and...
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
A test of the QED process \eeintogg(\fot) is reported. The data analysed were collected with the DELPHI detector in 1998 and 1999 at the highest ener\-gies achieved at LEP, reaching 202 GeV in the...
Photon Events with Missing Energy at $\sqrt{s}$= 183 to 189 GeV (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
The production of single photons has been studiedin the reaction e+e- --> gamma+ invisible particles at centre-of-mass energies of 183~GeV and 189~GeV.A previously published analysis of events with...
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
Lifetime and oscillations of $\Bs$ mesons have been studied in eventswith a large transverse momentum lepton and a $\Ds$ of opposite electric charge the same hemisphere, selected from about 3.6...
Rapidity-rank structure of $p\overline{p}$ pairs in hadronic $Z^0$ decays (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
The rapidity-rank structure of \ppb pairs is used to analyze the mechanism of baryon production in hadronic \zz decay. The relative occurrence of the rapidity-ordered configuration \pmpb, where $M$...
Limits on the masses of supersymmetric particles at $\sqrt{s}$=189 GeV (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
Searches for charginos, neutralinos and sleptons at LEP2 centre-of-mass energies from 130 GeV to 189 GeV have been used to set lower limits on the mass of the Lightest Supersymmetric Particle and...
Cross-Sections and Leptonic Forward-Backward Asymmetries from the $Z^0$Running of LEP (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Alekseev, G D., Alemany, R., ...
During 1993 and 1995 LEP was run at 3 energies near the Z$^0$ peak in order to give improved measurements of the mass and width of the resonance. During 1994, LEP operated only at the Z$^0$peak. In...
A Study of the Lorentz Structure in Tau Decays (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
This paper describes a measurement of the Michel parameters, $\eta$, $\rho$, $\xi$, $\xi \delta$, and the average $\nu_{\tau}$helicity, $h_{\nu_{\tau}}$, in $\tau$ lepton decays together withthe...
Search for SUSY with R-parity violating $LL\overline{E}$ couplings at $\sqrt{s}$=189 GeV (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
Searches for pair production of supersymmetric particlesunder the assumption that $R$--parity is not conserved are presented,based on data recorded by the DELPHI detector in 1998from e$^{+}$e$^{-}$...
Update of the search for charginos nearly mass-degenerate with the lightest neutralino (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
The data collected by DELPHI in 1998 at the centre-of-mass energy of 189~GeVhave been used to update the search for charginos nearly mass-degenerate withthe lightest supersymmetric particle, which is...
Measurement and interpretation of fermion-pair production at LEP energies of 183 and 189 GeV (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
An analysis of the data collected in 1997 and 1998 with the DELPHIdetector at $e^+e^-$ collision energies close to 183 and 189GeV was performed in order to extract the hadronic and leptonic...
A Precise Measurement of the $\tau$ Polarisation at LEP-1 (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
The $\tau$ polarisation has been studied with the $\eett$ data collected by the DELPHI detector at LEP in 1993, 1994 and 1995 around the $\Z$ resonance firstly through the exclusive decay channels...
Search for charginos in $e^+ e^-$ interactions at $\sqrt{s}$ = 189 GeV (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
An update of the searches for charginos and gravitinodon a data sample corresponding to the 158 pb$^{-1}$ rIdetector in 1998, at a centre-of-mass energy of 18asignal was found. The lower mass limits...
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
The cross-section for the process $e^+e^-\rightarrow W^+W^-$has been measured with the data sample collected by DELPHIat an average centre-of-mass energy of 189~GeV andcorresponding to an integrated...
Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...
Searches for pair production of supersymmetric particles in e$^{+}$e$^{-}$ collisions at centre-of-mass energy of 183~GeV have been performed on DELPHI data under the assumption that $R$-parity is...
Determination of $\mid V_{ub} \mid/\mid V_{cb} \mid$ with DELPHI at LEP (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
The ratio of the CKM quark-mixing matrix elements |V_{ub}|/|V_{cb}|has been measured using B hadron semileptonic decays.The analysis is based on a novel technique, recently proposed by theoreticians,...
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
A search for stable and long-lived heavy charged particles was performed using the data taken by the DELPHI experiment at an energy of 189 GeV. The Cherenkov light detected in the Ring Imaging...
Inclusive $\Sigma^-$ and $\Lambda(1520)$ production in hadronic Z decays (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
Production of $\sm$ and $\lft$ in hadronic Z decays has been measuredusing the \delphi detector at \lep. The $\sm$ is directly reconstructed as acharged track in the \delphi microvertex detector and...
Measurement of the $\overline{B} \to D^{(*)}\pi l\overline{\nu}_{l}$ branching fraction (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...
$\Lambda_b$ polarization in $Z^{0}$ decays at LEP (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...
Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...
The partial decay width $R_c$ of the $Z$ into $c\bar{c}$ quark pair and the number of charm quarks $n_c$ per $b$ decay are measured with the DELPHI detector at \mbox{LEP 1}. Particle identification...
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
The study of the directional dependence of two-particle correlations in the hadronic decays of the $Z^0$ boson is performed using the data collected by the DELPHI experiment in the 1992--1995 running...
Limits on the masses of supersymmetric particles at $\sqrt{s}$=189 GeV (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
Searches for charginos, neutralinos and sleptons at LEP2 centre-of-mass energies from 130 GeV to 189 GeV have been used to set lower limits on the mass of the Lightest Supersymmetric Particle and...
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
A test of the QED process \eeintogg(\fot) is reported. The data analysed were collected with the DELPHI detector in 1998 and 1999 at the highest ener\-gies achieved at LEP, reaching 202 GeV in the...
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
The study of the directional dependence of two-particle correlations in the hadronic decays of the $Z^0$ boson is performed using the data collected by the DELPHI experiment in the 1992--1995 running...
Inclusive $\Sigma^-$ and $\Lambda(1520)$ production in hadronic Z decays (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
Production of $\sm$ and $\lft$ in hadronic Z decays has been measuredusing the \delphi detector at \lep. The $\sm$ is directly reconstructed as acharged track in the \delphi microvertex detector and...
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
The cross-section for the process $e^+e^-\rightarrow W^+W^-$has been measured with the data sample collected by DELPHIat an average centre-of-mass energy of 189~GeV andcorresponding to an integrated...
Search for charginos in $e^+ e^-$ interactions at $\sqrt{s}$ = 189 GeV (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
An update of the searches for charginos and gravitinodon a data sample corresponding to the 158 pb$^{-1}$ rIdetector in 1998, at a centre-of-mass energy of 18asignal was found. The lower mass limits...
Measurement and interpretation of fermion-pair production at LEP energies of 183 and 189 GeV (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
An analysis of the data collected in 1997 and 1998 with the DELPHIdetector at $e^+e^-$ collision energies close to 183 and 189GeV was performed in order to extract the hadronic and leptonic...
Update of the search for charginos nearly mass-degenerate with the lightest neutralino (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
The data collected by DELPHI in 1998 at the centre-of-mass energy of 189~GeVhave been used to update the search for charginos nearly mass-degenerate withthe lightest supersymmetric particle, which is...
Search for SUSY with R-parity violating $LL\overline{E}$ couplings at $\sqrt{s}$=189 GeV (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
Searches for pair production of supersymmetric particlesunder the assumption that $R$--parity is not conserved are presented,based on data recorded by the DELPHI detector in 1998from e$^{+}$e$^{-}$...
A Study of the Lorentz Structure in Tau Decays (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
This paper describes a measurement of the Michel parameters, $\eta$, $\rho$, $\xi$, $\xi \delta$, and the average $\nu_{\tau}$helicity, $h_{\nu_{\tau}}$, in $\tau$ lepton decays together withthe...
Rapidity-rank structure of $p\overline{p}$ pairs in hadronic $Z^0$ decays (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
The rapidity-rank structure of \ppb pairs is used to analyze the mechanism of baryon production in hadronic \zz decay. The relative occurrence of the rapidity-ordered configuration \pmpb, where $M$...
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
Lifetime and oscillations of $\Bs$ mesons have been studied in eventswith a large transverse momentum lepton and a $\Ds$ of opposite electric charge the same hemisphere, selected from about 3.6...
Photon Events with Missing Energy at $\sqrt{s}$= 183 to 189 GeV (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
The production of single photons has been studiedin the reaction e+e- --> gamma+ invisible particles at centre-of-mass energies of 183~GeV and 189~GeV.A previously published analysis of events with...
Identified Charged Particles and Resonances in Quark and Gluon Jets (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
A sample of 2.2 million hadronic \z decays, selected fythe {\sc Delphi} detector at {\sc Lep} during 1994-199nimprovedmeasurement of inclusive distributions of \pie, \kp anrantiparticles in gluon and...
Searches for Neutral Higgs Bosons in $e^+ e^-$ Collisions around $\sqrt{s}$ = 189 GeV (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
Searches for neutral Higgs bosons in the Standard Model and the MSSM havebeen performed using data collected by the DELPHI experiment at acentre-of-mass energy of 188.7 GeV, corresponding toan...
Search for the sgoldstino at $\sqrt{s}$ from 189 to 202 GeV (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
A search for the supersymmetric partner of the goldstino, the sgoldstino S, at LEP2 is presented. The production S$\gamma$ followed by S decay into two gluons or into two photons was studied at 189 -...
Search for supersymmetric partners of top and bottom quarks at $\sqrt{s}$ = 189 GeV (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
Searches for supersymmetric partners of top and bottom quarks are presented using data taken by the DELPHI experiment at LEP in 1997 and 1998. No deviations from standard model expectations are...
Cross-Sections and Leptonic Forward-Backward Asymmetries from the $Z^0$Running of LEP (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Alekseev, G D., Alemany, R., ...
During 1993 and 1995 LEP was run at 3 energies near the Z$^0$ peak in order to give improved measurements of the mass and width of the resonance. During 1994, LEP operated only at the Z$^0$peak. In...
$\Lambda_b$ polarization in $Z^{0}$ decays at LEP (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...
Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...
Oscillations of $\mbox{B}^0_{\mathrm{s}}$ mesons have been studied in samples selected from about 3.5 million hadronic $\Zz$ decays detected by DELPHI betwee. One analysis uses events in the...
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
Inclusive distributions of charged particles in hadronic Wdecays are experimentally investigated using the statisticscollected by the DELPHI experiment at LEP during 1997, 1998and 1999, at...
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
Using the data sample of hadronic $Z^0$ decays collected by the DELPHI experiment in the 1992-1995 LEP1 period, the leptonic decay of the charged $B$ mesons (\btauex) has been studied. The analysis...
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
Searches for {\mbox{$ {\mathrm H} {\mathrm Z} $}} production d with the Higgs boson decaying into an invisible final state have been performedd the data collected by the DELPHI experimentd up to the...
A Precise Measurement of the $\tau$ Polarisation at LEP-1 (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
The $\tau$ polarisation has been studied with the $\eett$ data collected by the DELPHI detector at LEP in 1993, 1994 and 1995 around the $\Z$ resonance firstly through the exclusive decay channels...
Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...
Searches for pair production of supersymmetric particles in e$^{+}$e$^{-}$ collisions at centre-of-mass energy of 183~GeV have been performed on DELPHI data under the assumption that $R$-parity is...
Determination of $\mid V_{ub} \mid/\mid V_{cb} \mid$ with DELPHI at LEP (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
The ratio of the CKM quark-mixing matrix elements |V_{ub}|/|V_{cb}|has been measured using B hadron semileptonic decays.The analysis is based on a novel technique, recently proposed by theoreticians,...
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
A search for stable and long-lived heavy charged particles was performed using the data taken by the DELPHI experiment at an energy of 189 GeV. The Cherenkov light detected in the Ring Imaging...
Measurement of the $\overline{B} \to D^{(*)}\pi l\overline{\nu}_{l}$ branching fraction (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...
Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...
The partial decay width $R_c$ of the $Z$ into $c\bar{c}$ quark pair and the number of charm quarks $n_c$ per $b$ decay are measured with the DELPHI detector at \mbox{LEP 1}. Particle identification...
Limits on the masses of supersymmetric particles at $\sqrt{s}$=189 GeV (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
Searches for charginos, neutralinos and sleptons at LEP2 centre-of-mass energies from 130 GeV to 189 GeV have been used to set lower limits on the mass of the Lightest Supersymmetric Particle and...
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
A test of the QED process \eeintogg(\fot) is reported. The data analysed were collected with the DELPHI detector in 1998 and 1999 at the highest ener\-gies achieved at LEP, reaching 202 GeV in the...
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
The study of the directional dependence of two-particle correlations in the hadronic decays of the $Z^0$ boson is performed using the data collected by the DELPHI experiment in the 1992--1995 running...
Inclusive $\Sigma^-$ and $\Lambda(1520)$ production in hadronic Z decays (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
Production of $\sm$ and $\lft$ in hadronic Z decays has been measuredusing the \delphi detector at \lep. The $\sm$ is directly reconstructed as acharged track in the \delphi microvertex detector and...
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
The cross-section for the process $e^+e^-\rightarrow W^+W^-$has been measured with the data sample collected by DELPHIat an average centre-of-mass energy of 189~GeV andcorresponding to an integrated...
Search for charginos in $e^+ e^-$ interactions at $\sqrt{s}$ = 189 GeV (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
An update of the searches for charginos and gravitinodon a data sample corresponding to the 158 pb$^{-1}$ rIdetector in 1998, at a centre-of-mass energy of 18asignal was found. The lower mass limits...
Measurement and interpretation of fermion-pair production at LEP energies of 183 and 189 GeV (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
An analysis of the data collected in 1997 and 1998 with the DELPHIdetector at $e^+e^-$ collision energies close to 183 and 189GeV was performed in order to extract the hadronic and leptonic...
Update of the search for charginos nearly mass-degenerate with the lightest neutralino (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
The data collected by DELPHI in 1998 at the centre-of-mass energy of 189~GeVhave been used to update the search for charginos nearly mass-degenerate withthe lightest supersymmetric particle, which is...
Search for SUSY with R-parity violating $LL\overline{E}$ couplings at $\sqrt{s}$=189 GeV (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
Searches for pair production of supersymmetric particlesunder the assumption that $R$--parity is not conserved are presented,based on data recorded by the DELPHI detector in 1998from e$^{+}$e$^{-}$...
A Study of the Lorentz Structure in Tau Decays (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
This paper describes a measurement of the Michel parameters, $\eta$, $\rho$, $\xi$, $\xi \delta$, and the average $\nu_{\tau}$helicity, $h_{\nu_{\tau}}$, in $\tau$ lepton decays together withthe...
Rapidity-rank structure of $p\overline{p}$ pairs in hadronic $Z^0$ decays (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
The rapidity-rank structure of \ppb pairs is used to analyze the mechanism of baryon production in hadronic \zz decay. The relative occurrence of the rapidity-ordered configuration \pmpb, where $M$...
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
Lifetime and oscillations of $\Bs$ mesons have been studied in eventswith a large transverse momentum lepton and a $\Ds$ of opposite electric charge the same hemisphere, selected from about 3.6...
Photon Events with Missing Energy at $\sqrt{s}$= 183 to 189 GeV (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
The production of single photons has been studiedin the reaction e+e- --> gamma+ invisible particles at centre-of-mass energies of 183~GeV and 189~GeV.A previously published analysis of events with...
Identified Charged Particles and Resonances in Quark and Gluon Jets (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
A sample of 2.2 million hadronic \z decays, selected fythe {\sc Delphi} detector at {\sc Lep} during 1994-199nimprovedmeasurement of inclusive distributions of \pie, \kp anrantiparticles in gluon and...
Searches for Neutral Higgs Bosons in $e^+ e^-$ Collisions around $\sqrt{s}$ = 189 GeV (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
Searches for neutral Higgs bosons in the Standard Model and the MSSM havebeen performed using data collected by the DELPHI experiment at acentre-of-mass energy of 188.7 GeV, corresponding toan...
Search for the sgoldstino at $\sqrt{s}$ from 189 to 202 GeV (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
A search for the supersymmetric partner of the goldstino, the sgoldstino S, at LEP2 is presented. The production S$\gamma$ followed by S decay into two gluons or into two photons was studied at 189 -...
Search for supersymmetric partners of top and bottom quarks at $\sqrt{s}$ = 189 GeV (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
Searches for supersymmetric partners of top and bottom quarks are presented using data taken by the DELPHI experiment at LEP in 1997 and 1998. No deviations from standard model expectations are...
Cross-Sections and Leptonic Forward-Backward Asymmetries from the $Z^0$Running of LEP (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Alekseev, G D., Alemany, R., ...
During 1993 and 1995 LEP was run at 3 energies near the Z$^0$ peak in order to give improved measurements of the mass and width of the resonance. During 1994, LEP operated only at the Z$^0$peak. In...
$\Lambda_b$ polarization in $Z^{0}$ decays at LEP (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...
Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...
Oscillations of $\mbox{B}^0_{\mathrm{s}}$ mesons have been studied in samples selected from about 3.5 million hadronic $\Zz$ decays detected by DELPHI betwee. One analysis uses events in the...
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
Inclusive distributions of charged particles in hadronic Wdecays are experimentally investigated using the statisticscollected by the DELPHI experiment at LEP during 1997, 1998and 1999, at...
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
Using the data sample of hadronic $Z^0$ decays collected by the DELPHI experiment in the 1992-1995 LEP1 period, the leptonic decay of the charged $B$ mesons (\btauex) has been studied. The analysis...
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
Searches for {\mbox{$ {\mathrm H} {\mathrm Z} $}} production d with the Higgs boson decaying into an invisible final state have been performedd the data collected by the DELPHI experimentd up to the...
A Precise Measurement of the $\tau$ Polarisation at LEP-1 (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
The $\tau$ polarisation has been studied with the $\eett$ data collected by the DELPHI detector at LEP in 1993, 1994 and 1995 around the $\Z$ resonance firstly through the exclusive decay channels...
Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...
Searches for pair production of supersymmetric particles in e$^{+}$e$^{-}$ collisions at centre-of-mass energy of 183~GeV have been performed on DELPHI data under the assumption that $R$-parity is...
Determination of $\mid V_{ub} \mid/\mid V_{cb} \mid$ with DELPHI at LEP (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
The ratio of the CKM quark-mixing matrix elements |V_{ub}|/|V_{cb}|has been measured using B hadron semileptonic decays.The analysis is based on a novel technique, recently proposed by theoreticians,...
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
A search for stable and long-lived heavy charged particles was performed using the data taken by the DELPHI experiment at an energy of 189 GeV. The Cherenkov light detected in the Ring Imaging...
Measurement of the $\overline{B} \to D^{(*)}\pi l\overline{\nu}_{l}$ branching fraction (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...
Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...
The partial decay width $R_c$ of the $Z$ into $c\bar{c}$ quark pair and the number of charm quarks $n_c$ per $b$ decay are measured with the DELPHI detector at \mbox{LEP 1}. Particle identification...
Photon events with missing energy at root s=183 to 189 GeV (2000)
Abreau, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
The production of single photons has been studied in the reaction e(+)e(-) → gamma +invisible particles at centre-of- mass energies of 183 GeV and 189 GeV. A previously published analysis of events...
Abreau, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
The study of the directional dependence of two-particle correlations in the hadronic decays of the Z(0) boson is performed using the data collected by the DELPHI experiment in the 1992-1995 running...
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
Inclusive distributions of charged particles in hadronic W decays are experimentally investigated using the statistics collected by the DELPHI experiment at LEP during 1997, 1998 and 1999, at...
Consistent measurements of alpha(s) from precise oriented event shape distributions (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
An updated analysis using about 1.5 million events recorded at root s = M-Z with the DELPHI detector in 1994 is presented. Eighteen infrared and collinear safe event shape observables are measured as...
Cross-sections and leptonic forward-backward asymmetries from the Z(0) running of LEP (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Alekseev, G.D., Alemany, R., ...
During 1993 and 1995 LEP was run at 3 energies near the Z(0) peak in order to give improved measurements of the mass and width of the resonance. During 1994, LEP operated only at the Z(0) peak. In...
Determination of P(c → D*(+)) and BR(c → l(+)) at LEP 1 (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
The probability P(c → D*(+)) that a charm quark fragments into a D*+ meson and the c → l(+) semileptonic branching fraction were measured in Z(0) decay into c (c) over bar events. From the...
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
A test of the QED process e(+)e(-) → gamma gamma gt (*) over bar *(gamma) is reported. The data analysed were collected with the DELPHI detector in 1998 and 1999 at the highest energies achieved at...
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
The DELPHI detector at LEP has collected 54 pb(-1) of data at a centre-of-mass energy around 183 GeV during 1997, 158 pb(-1) around 189 GeV during 1998, and 187 pb(-1) between 192 and 200 GeV during...
Identified charged particles in quark and gluon jets (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
A sample of 2.2 million hadronic Z decays, selected from the data recorded by the DELPHI detector at LEP during 1994-1995 was used for an improved measurement of inclusive distributions of pi (+), K+...
Inclusive Sigma(-) and Lambda(1520) production in hadronic Z decays (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
Production of Sigma(-) and Lambda(1520) in hadronic Z decays has been measured using the DELPHI detector at LEP. The Sigma(- ) is directly reconstructed as a charged track in the DELPHI microvertex...
Lambdab polarization in Z0 decays at LEP (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
The longitudinal polarization of the Lambda(b) baryon is measured at the LEP e(+)e(-) collider by DELPHI. It is determined from the charged lepton and neutrino energy spectra in 249 +/- 19 Lambda(b)...
Limits on the masses of supersymmetric particles at root s=189 GeV (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
Searches for charginos, neutralinos and sleptons at LEP2 centre-of-mass energies from 130 GeV to 189 GeV have been used to set lower limits on the mass of the Lightest Supersymmetric Particle and...
Measurement and interpretation of fermion-pair production at LEP energies of 183 and 189 GeV (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
An analysis of the data collected in 1997 and 1998 with the DELPHI detector at e(+)e(-) collision energies close to 183 and 189 GeV was performed in order to extract the hadronic and leptonic...
Measurement of the (B)over-bar → D-(*)pi l(nu)over-bar(l) branching fraction (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
A study of b semileptonic decays into D, D pi(+/-) and D*pi(+/- ) final states is presented. The D-0, D+ and D*(+) mesons are exclusively reconstructed in Z decay data recorded from 1992 to 1995 in...
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
Lifetime and oscillations of B-s(0) mesons have been studied in events with a large transverse momentum lepton and a D-s of opposite electric charge in the same hemisphere, selected from about 3.6...
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
The fragmentation functions of quarks and gluons are measured in Various three-jet topologies in Z decays from the full data set collected with the DELPHI detector at the Z resonance between 1992 and...
Measurement of the strange quark forward-backward asymmetry around the Z(0) peak (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Abrecht, Z., Alderweireld, T., ...
A precise measurement of the strange quark forward-backward asymmetry used 3.2 M multihadronic events around the Z(0) peak collected by the DELPHI experiment from 1992 to 1995. The ring imaging...
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
The partial decay width R-c of the Z into c (c) over bar quark pair and the number of charm quarks n(c) per b decay are measured with the DELPHI detector at LEP 1. Particle identification provides...
Rapidity-rank structure of p(p)over-bar pairs in hadronic Z(0) decays (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
The rapidity-rank structure of pa pairs is used to analyze the mechanism of baryon production in hadronic Z(0) decay. The relative occurrence of the rapidity-ordered configuration p M p, where M is a...
Search for heavy stable and long-lived particles in e(+)e(-) collisions at root s=189 GeV (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
A search for stable and long-lived heavy charged particles was performed using the data taken by the DELPHI experiment at an energy of 189 GeV. The Cherenkov light detected in the Ring Imaging...
Search for supersymmetric partners of top and bottom quarks at root s=189 GeV (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
Searches for supersymmetric partners of top and bottom quarks are presented using data taken by the DELPHI experiment at LEP in 1997 and 1998. No deviations from standard model expectations are...
Search for supersymmetric particles in scenarios with a gravitino LSP and stau NLSP (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
Sleptons, neutralinos and charginos were searched for in the context of scenarios where the lightest supersymmetric particle is the gravitino. It was assumed that the stau is the next-to- lightest...
Search for supersymmetry with R-parity violating LL(E)over-bar couplings at root s=183 GeV (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
Searches for pair production of supersymmetric particles in e(+)e(-) collisions at centre-of-mass energy of 183 GeV have been performed on DELPHI data under the assumption that R- parity is not...
Search for SUSY with R-parity violating LL(E)over-bar couplings at root s=189 GeV (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
Searches for pair production of supersymmetric particles under the assumption that R-parity is not conserved are presented, based on data recorded by the DELPHI detector in 1998 from e(+)e(-)...
Search for the sgoldstino at root s from 189 to 202 GeV (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
A search for the supersymmetric partner of the goldstino, the sgoldstino S, at LEP2 is presented. The production S gamma followed by S decay into two gluons or into two photons was studied at 189-202...
Searches for neutral Higgs bosons in e(+)e(-) collisions around root s=189 GeV (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
Searches for neutral Higgs bosons in the Standard Model and the MSSM have been performed using data collected by the DELPHI experiment at a centre-of-mass energy of 188.7 GeV, corresponding to an...
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
Oscillations of B-s(0) mesons have been studied in samples selected from about 3.5 million hadronic Z decays detected by DELPHI between 1992 and 1995. One analysis uses events in the exclusive decay...
Update of the search for charginos nearly mass-degenerate with the lightest neutralino (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
The data collected by DELPHI in 1998 at the centre-of-mass energy of 189 GeV have been used to update the search for charginos nearly mass-degenerate with the lightest supersymmetric particle, which...
W pair production cross-section and W branching fractions in e(+)e(-) interactions at 189 GeV (2000)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
The cross-section for the process e(+)e(-) → W+ W- has been measured with the data sample collected by DELPHI at an average centre-of-mass energy of 189 GeV and corresponding to an integrated...
Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Albrecht, Z, ...
A precise measurement of the $\tau$ polarisation at LEP-1 (1999)
Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Albrecht, Z, ...
The $\tau$ polarisation has been studied with the $\eett$ data collected by the DELPHI detector at LEP in 1993, 1994 and 1995 around the $\Z$ resonance firstly through the exclusive decay channels...
Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, ...
The study of the directional dependence of two-particle correlations in the hadronic decays of the $Z^0$ boson is performed using the data collected by the DELPHI experiment in the 1992--1995 running...
Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Albrecht, Z, ...
Using the data sample of hadronic $Z^0$ decays collected by the DELPHI experiment in the 1992-1995 LEP1 period, the leptonic decay of the charged $B$ mesons (\btauex) has been studied. The analysis...
Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, ...
Measurement of the strange quark forward-backward asymmetry around the $Z^0$ peak (1999)
Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, ...
Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, ...
Promptly decaying lightest charginos were searched for in the context of scenarios with gravitino LSP. It was assumed that the stau is the next to lightest supersymmetric particle (NLSP). Data...
Energy Dependence of Inclusive Spectra in $e^{+} e^{-}$ Annihilation (1999)
Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, ...
Inclusive charged hadron distributions as obtaind from the DELPHI measurements at 130, 136, 161, 172 and 183 GeV are presented as a function of the variables rapidity, $\xi_p$, $p$ and transversal...
Search for the Higgs boson in events with isolated photons at LEP 2 (1999)
Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Albrecht, Z, ...
A search for the Higgs boson in final states with one, two or three isolated photons has been performed based on data taken at LEP 2 by the DELPHI detector. The data analysed correspond to a total...
A search for invisible Higgs bosons produced in $e^{+} e^{-}$ interactions at LEP 2 energies (1999)
Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, ...
Searches for HZ production with the Higgs boson decaying into an invisible final state have been performed with the data collected by the DELPHI experiment up to the centre-of-mass energy of 183 GeV....
Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Albrecht, Z, ...
Measurements of the trilinear gauge boson couplings $WW\gamma$ and $WWZ$ are presented from data taken by DELPHI in 1997 at an energy of 183 GeV. From a study of the reactions $e^+ e^- \to W^+ W^-,...
Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Albrecht, Z, ...
The rate $Z \rightarrow b\overline{b}b\overline{b}$ was measured using about $2 x 10^6$ hadronic decays collected by the DELPHI experiment in 1994 and 1995. Events were forced into 3-jets with...
Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Albrecht, Z, ...
The partial decay width $R_c$ of the $Z$ into $c\bar{c}$ quark pair and the number of charm quarks $n_c$ per $b$ decay are measured with the DELPHI detector at \mbox{LEP 1}. Particle identification...
Determination of $P(c \to D^{*+})$ and $BR(c \to l^{+})$ at LEP 1 (1999)
Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Albrecht, Z, ...
The probability $P(c \rightarrow D^{*+})$ that a charm quark fragments into a $D^{*+}$ meson and the $c \rightarrow l^+$ semileptonic branching fraction were measured in $Z^0\ $ decay into $c\bar{c}$...
Search for Charged Higgs Bosons at LEP 2 (1999)
Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, ...
A search for pair produced charged Higgs bosons has been performed in the high energy data collected by DELPHI at LEP with $\sqrt{s} =$ 161, 172 and 183~GeV. The analysis uses the $\tau \nu \tau...
Measurement of the mass of the W boson using direct reconstruction at $\sqrt{s}$ = 183 GeV (1999)
Abreu, P, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, Alekseev, G D, ...
Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Albrecht, Z, ...
Multiplicity fluctuations in rings around the jet axis and in off-axis cones have been measured by the DELPHI collaboration in $e^+e^-$ annihilations into hadrons at LEP energies. The measurements...
Energy dependence of event shapes and of $\alpha_s$ at LEP 2 (1999)
Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, ...
Infrared and collinear safe event shape distributions and their mean values are determined using the data taken at ve di erent centre of mass energies above $M_Z$ with the DELPHI detector at LEP....
Measurements of the leptonic branching fractions of the $\tau$ (1999)
Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Albrecht, Z, ...
Data collected with the DELPHI detector from 1993 to 1995 combined with previous DELPHI results for data from 1991 and 1992 yield the branching fractions $ B({\tau \rightarrow \mbox{\rm e} \nu...
Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, ...
The cross-section for the process $e^+e^-\rightarrow W^+W^-$ has been measured with the data sample collected by DELPHI at an average centre-of-mass energy of 182.65 GeV and corresponding to an...
Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Albrecht, Z, ...
Searches for pair production of supersymmetric particles in e$^{+}$e$^{-}$ collisions at centre-of-mass energy of 183~GeV have been performed on DELPHI data under the assumption that $R$-parity is...
Search for charginos nearly mass-degenerate with the lightest neutralino (1999)
Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, ...
A search for charginos with masses close to the mass of the lightest neutralino is reported, based on the data collected with the DELPHI detector at LEP from 1995 to 1997 at centre-of-mass energies...
Measurement of the Lifetime of b-baryons (1999)
Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, ...
The average lifetime of weakly decaying $b$-baryons was studied using 3.6 million $Z^0$ hadronic decays collected by the DELPHI detector at LEP. The measurement of the proper decay time distribution...
Search for neutral Higgs bosons in $e^{+}e^{-}$ collisions at $\sqrt{s}$ = 183 GeV (1999)
Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Albrecht, Z, ...
Neutral Higgs bosons were searched for in the data collected by DELPHI at a centre-of-mass energy of 183 GeV, corresponding to an integrated luminosity of 54 pb/sup -1/
Abreu, P, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, Alekseev, G D, ...
A measurement of the forward--backward asymmetry of $e^{+}e^{-} \to c\bar{c}$ and $e^{+}e^{-} \to b\bar{b}$ on the $Z$ resonance is performed using about 3.5 million hadronic $Z$ decays collected by...
Measurement and Interpretation of Fermion-Pair Production at LEP energies from 130 to 172 GeV (1999)
Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, ...
The data collected with the DELPHI detector at centre-of-mass energies between 130 and 172~$\GeV$, during LEP operation in 1995 and 1996, have been used to determine the hadronic and leptonic...
Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Albrecht, Z, ...
\frac{C_A}{C_F} = 2.246 \pm 0.062~(stat.) \pm 0.080~(syst.) \pm 0.095~(theo.)
Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Albrecht, Z, ...
DELPHI results are presented on the inclusive production of the neutral mesons$\rho^0$, $f_0(980)$, $f_2(1270)$, K$^{*0}_2(1430)$ and $f^{'}_2(1525)$ in hadronic Z$^0$ decays. They are based on about...
Study of the four-jet anomaly observed at LEP centre-of-mass energies of 130 and 136 GeV (1999)
Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Albrecht, Z, ...
The four-jet events collected by \delphi\ during the speciaLEP run at centre-of-mass energies of 130 and 136 \GeV\ in 1997 with an integrated luminosity of $5.9 \ipb $ are analysed. Their rate and...
Measurement of $A_{FB}^{\overline{b}b}$ in Hadronic Z Decays using a Jet Charge Technique (1999)
Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, ...
The $\BB$ forward-backward asymmetry %, $\AFBbb$, has been determined from the average charge flow %, $\langle Q_{FB}\rangle$, measured in a sample of 3,500,000 hadronic Z decays collected with the...
Measurement and Interpretation of Fermion-Pair Production at LEP energies from 130 to 172 GeV (1999)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
The data collected with the DELPHI detector at centre-of-mass energies between 130 and 172~$\GeV$, during LEP operation in 1995 and 1996, have been used to determine the hadronic and leptonic...
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
Promptly decaying lightest charginos were searched for in the context of scenarios with gravitino LSP. It was assumed that the stau is the next to lightest supersymmetric particle (NLSP). Data...
Measurement of the mass of the W boson using direct reconstruction at $\sqrt{s}$ = 183 GeV (1999)
Abreu, P., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., Alekseev, G D., ...
From data corresponding to an integrated luminosity of $53.5 \, {\mathrm {pb}}^{-1}$ taken during the $183 \, \GeV$ run in 1997, DELPHI has measured the W mass from direct reconstruction of $\WW...
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
The rate $Z \rightarrow b\overline{b}b\overline{b}$ was measured using about $2 x 10^6$ hadronic decays collected by the DELPHI experiment in 1994 and 1995. Events were forced into 3-jets with...
Measurements of the leptonic branching fractions of the $\tau$ (1999)
Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...
Data collected with the DELPHI detector from 1993 to 1995 combined with previous DELPHI results for data from 1991 and 1992 yield the branching fractions $ B({\tau \rightarrow \mbox{\rm e} \nu...
Search for charged Higgs bosons at LEP 2 (1999)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
A search for pair produced charged Higgs bosons has been performed in the high energy data collected by DELPHI at LEP with $\sqrt{s} =$ 161, 172 and 183~GeV. The analysis uses the $\tau \nu \tau...
Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...
Multiplicity fluctuations in rings around the jet axis and in off-axis cones have been measured by the DELPHI collaboration in $e^+e^-$ annihilations into hadrons at LEP energies. The measurements...
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
The cross-section for the process $e^+e^-\rightarrow W^+W^-$ has been measured with the data sample collected by DELPHI at an average centre-of-mass energy of 182.65 GeV and corresponding to an...
Energy dependence of event shapes and of $\alpha_s$ at LEP 2 (1999)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
Infrared and collinear safe event shape distributions and their mean values are determined using the data taken at ve di erent centre of mass energies above $M_Z$ with the DELPHI detector at LEP....
Search for composite and exotic fermions at LEP 2 (1999)
Abreu, P., Adam, W., Adye, T., Adzic, P., Aldeweireld, T., Alekseev, G D., ...
A search for unstable heavy fermions with the DELPHI detector at LEP is reported. Sequential and non-canonical leptons, as well as excited leptons and quarks, are considered. The data analysed...
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
DELPHI results are presented on the inclusive production of the neutral mesons$\rho^0$, $f_0(980)$, $f_2(1270)$, K$^{*0}_2(1430)$ and $f^{'}_2(1525)$in hadronic Z$^0$ decays. They are based on about2...
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Aldeweireld, T., ...
An update of the searches for charginos and neutralinos is presented, basedon a data sample corresponding to the 53.9 pb$^{-1}$ recorded by the DELPHIdetector in 1997, at a centre-of-mass energy of...
Measurement of the Quark and Gluon Fragmentation Functions in Z$^0$ Hadronic Decays (1999)
Abreu, P., Adam, W., Adye, T., Ajinenko, I., Alekseev, G D., Alemany, R., ...
The transverse, longitudinal and asymmetric components of the fragmentation function are measured from the inclusive charged particles produced in $e^+e^-$ collisions at LEP. As in deep inelastic...
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Alekseev, G D., ...
Data taken by DELPHI during the 1995 and 1996 LEP runs have been used to search for the supersymmetric partners of electron, muon and tau leptons and of top and bottom quarks. The observations are in...
Abreu, P., Adye, T., Adzic, P., Ajinenko, I., Alekseev, G D., Alemany, R., ...
The events with two photons and missing (transverse) energy collected by the DELPHI detector at centre-of-mass energies between 130~GeV and 183~GeV have been studied to search for processes of the...
Measurement of the Quark and Gluon Fragmentation Functions in Z$^0$ Hadronic Decays (1999)
Abreu, P., Adam, W., Adye, T., Ajinenko, I., Alekseev, G D., Alemany, R., ...
The transverse, longitudinal and asymmetric components of the fragmentation function are measured from the inclusive charged particles produced in $e^+e^-$ collisions at LEP. As in deep inelastic...
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
DELPHI results are presented on the inclusive production of the neutral mesons$\rho^0$, $f_0(980)$, $f_2(1270)$, K$^{*0}_2(1430)$ and $f^{'}_2(1525)$in hadronic Z$^0$ decays. They are based on about2...
Search for composite and exotic fermions at LEP 2 (1999)
Abreu, P., Adam, W., Adye, T., Adzic, P., Aldeweireld, T., Alekseev, G D., ...
A search for unstable heavy fermions with the DELPHI detector at LEP is reported. Sequential and non-canonical leptons, as well as excited leptons and quarks, are considered. The data analysed...
Energy dependence of event shapes and of $\alpha_s$ at LEP 2 (1999)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
Infrared and collinear safe event shape distributions and their mean values are determined using the data taken at ve di erent centre of mass energies above $M_Z$ with the DELPHI detector at LEP....
Measurements of the leptonic branching fractions of the $\tau$ (1999)
Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...
Data collected with the DELPHI detector from 1993 to 1995 combined with previous DELPHI results for data from 1991 and 1992 yield the branching fractions $ B({\tau \rightarrow \mbox{\rm e} \nu...
Measurement and Interpretation of Fermion-Pair Production at LEP energies from 130 to 172 GeV (1999)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
The data collected with the DELPHI detector at centre-of-mass energies between 130 and 172~$\GeV$, during LEP operation in 1995 and 1996, have been used to determine the hadronic and leptonic...
Abreu, P., Adye, T., Adzic, P., Ajinenko, I., Alekseev, G D., Alemany, R., ...
The events with two photons and missing (transverse) energy collected by the DELPHI detector at centre-of-mass energies between 130~GeV and 183~GeV have been studied to search for processes of the...
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Alekseev, G D., ...
Data taken by DELPHI during the 1995 and 1996 LEP runs have been used to search for the supersymmetric partners of electron, muon and tau leptons and of top and bottom quarks. The observations are in...
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Aldeweireld, T., ...
An update of the searches for charginos and neutralinos is presented, basedon a data sample corresponding to the 53.9 pb$^{-1}$ recorded by the DELPHIdetector in 1997, at a centre-of-mass energy of...
Measurement of the mass of the W boson using direct reconstruction at $\sqrt{s}$ = 183 GeV (1999)
Abreu, P., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., Alekseev, G D., ...
From data corresponding to an integrated luminosity of $53.5 \, {\mathrm {pb}}^{-1}$ taken during the $183 \, \GeV$ run in 1997, DELPHI has measured the W mass from direct reconstruction of $\WW...
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
Promptly decaying lightest charginos were searched for in the context of scenarios with gravitino LSP. It was assumed that the stau is the next to lightest supersymmetric particle (NLSP). Data...
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
The rate $Z \rightarrow b\overline{b}b\overline{b}$ was measured using about $2 x 10^6$ hadronic decays collected by the DELPHI experiment in 1994 and 1995. Events were forced into 3-jets with...
Search for charged Higgs bosons at LEP 2 (1999)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
A search for pair produced charged Higgs bosons has been performed in the high energy data collected by DELPHI at LEP with $\sqrt{s} =$ 161, 172 and 183~GeV. The analysis uses the $\tau \nu \tau...
Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...
Multiplicity fluctuations in rings around the jet axis and in off-axis cones have been measured by the DELPHI collaboration in $e^+e^-$ annihilations into hadrons at LEP energies. The measurements...
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
The cross-section for the process $e^+e^-\rightarrow W^+W^-$ has been measured with the data sample collected by DELPHI at an average centre-of-mass energy of 182.65 GeV and corresponding to an...
Measurement of the Quark and Gluon Fragmentation Functions in Z$^0$ Hadronic Decays (1999)
Abreu, P., Adam, W., Adye, T., Ajinenko, I., Alekseev, G D., Alemany, R., ...
The transverse, longitudinal and asymmetric components of the fragmentation function are measured from the inclusive charged particles produced in $e^+e^-$ collisions at LEP. As in deep inelastic...
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
DELPHI results are presented on the inclusive production of the neutral mesons$\rho^0$, $f_0(980)$, $f_2(1270)$, K$^{*0}_2(1430)$ and $f^{'}_2(1525)$in hadronic Z$^0$ decays. They are based on about2...
Search for composite and exotic fermions at LEP 2 (1999)
Abreu, P., Adam, W., Adye, T., Adzic, P., Aldeweireld, T., Alekseev, G D., ...
A search for unstable heavy fermions with the DELPHI detector at LEP is reported. Sequential and non-canonical leptons, as well as excited leptons and quarks, are considered. The data analysed...
Energy dependence of event shapes and of $\alpha_s$ at LEP 2 (1999)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
Infrared and collinear safe event shape distributions and their mean values are determined using the data taken at ve di erent centre of mass energies above $M_Z$ with the DELPHI detector at LEP....
Measurements of the leptonic branching fractions of the $\tau$ (1999)
Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...
Data collected with the DELPHI detector from 1993 to 1995 combined with previous DELPHI results for data from 1991 and 1992 yield the branching fractions $ B({\tau \rightarrow \mbox{\rm e} \nu...
Measurement and Interpretation of Fermion-Pair Production at LEP energies from 130 to 172 GeV (1999)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
The data collected with the DELPHI detector at centre-of-mass energies between 130 and 172~$\GeV$, during LEP operation in 1995 and 1996, have been used to determine the hadronic and leptonic...
Abreu, P., Adye, T., Adzic, P., Ajinenko, I., Alekseev, G D., Alemany, R., ...
The events with two photons and missing (transverse) energy collected by the DELPHI detector at centre-of-mass energies between 130~GeV and 183~GeV have been studied to search for processes of the...
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Alekseev, G D., ...
Data taken by DELPHI during the 1995 and 1996 LEP runs have been used to search for the supersymmetric partners of electron, muon and tau leptons and of top and bottom quarks. The observations are in...
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Aldeweireld, T., ...
An update of the searches for charginos and neutralinos is presented, basedon a data sample corresponding to the 53.9 pb$^{-1}$ recorded by the DELPHIdetector in 1997, at a centre-of-mass energy of...
Measurement of the mass of the W boson using direct reconstruction at $\sqrt{s}$ = 183 GeV (1999)
Abreu, P., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., Alekseev, G D., ...
From data corresponding to an integrated luminosity of $53.5 \, {\mathrm {pb}}^{-1}$ taken during the $183 \, \GeV$ run in 1997, DELPHI has measured the W mass from direct reconstruction of $\WW...
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
Promptly decaying lightest charginos were searched for in the context of scenarios with gravitino LSP. It was assumed that the stau is the next to lightest supersymmetric particle (NLSP). Data...
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Albrecht, Z., ...
The rate $Z \rightarrow b\overline{b}b\overline{b}$ was measured using about $2 x 10^6$ hadronic decays collected by the DELPHI experiment in 1994 and 1995. Events were forced into 3-jets with...
Search for charged Higgs bosons at LEP 2 (1999)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
A search for pair produced charged Higgs bosons has been performed in the high energy data collected by DELPHI at LEP with $\sqrt{s} =$ 161, 172 and 183~GeV. The analysis uses the $\tau \nu \tau...
Abreu, P., Adam, W., Adye, T., Adzic, P., Azhinenko, I., Albrecht, Z., ...
Multiplicity fluctuations in rings around the jet axis and in off-axis cones have been measured by the DELPHI collaboration in $e^+e^-$ annihilations into hadrons at LEP energies. The measurements...
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
The cross-section for the process $e^+e^-\rightarrow W^+W^-$ has been measured with the data sample collected by DELPHI at an average centre-of-mass energy of 182.65 GeV and corresponding to an...
Measurement and interpretation of fermion-pair production at LEP energies from 130 to 172 GeV (1999)
Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., ...
The data collected with the DELPHI detector at centre-of-mass energies between 130 and 172 GeV, during LEP operation in 1995 and 1996, have been used to determine the hadronic and leptonic...
Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, ...
The partial decay width of the Z to $\bb$ quark pairs has beenmeasured by the DELPHI detector at LEP using data taken in the years1992 to 1995.Decays of b-hadrons were tagged by several methods...
Search for Leptoquarks and FCNC in $e^{+} e^{-}$ annihilations at $\sqrt{s}$=183 GeV (1998)
Abreu, P, Adam, W, Adye, T, Adzic, P, Alderweireld, T, Alekseev, G D, ...
A search for events with one jet and at most one isolated leptonused data taken at LEP-2 by the DELPHI detector.These data were accumulated at a center-of-mass energy of183 GeV and correspond to an...
Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Alderweireld, T, ...
An update of the searches for charginos and neutralinos is presented, basedon a data sample corresponding to the 53.9 pb$^{-1}$ recorded by the DELPHIdetector in 1997, at a centre-of-mass energy of...
Search for composite and exotic fermions at LEP 2 (1998)
Abreu, P, Adam, W, Adye, T, Adzic, P, Alderweireld, T, Alekseev, G D, ...
A search for unstable heavy fermions with the DELPHI detector at LEP is reported. Sequential and non-canonical leptons, as well as excited leptons and quarks, are considered. The data analysed...
Abreu, P, Adam, W, Adye, T, Adzic, P, Alderweireld, T, Alekseev, G D, ...
Promptly decaying lightest neutralinos and long-lived staus are searched for in the context of light gravitino scenarios. It is assumed that the stau is the next to lightest supersymmetric particle...
Abreu, P, Adam, W, Adye, T, Adzic, P, Alderweireld, T, Alekseev, G D, ...
A search for stable and long-lived heavy charged particles used the data taken by the DELPHI experiment at energies from 130 to 183 GeV. The Cherenkov light detected in the Ring Imaging Cherenkov...
A search for $\eta'_c$ production in photon-photon fusion at LEP (1998)
Abreu, P, Adam, W, Adye, T, Adzic, P, Alekseev, G D, Alemany, R, ...
A search for the production of the $\eta'_c$ meson, the first radial excitation of the ground state of charmonium $\eta_c$(2980), in the photon-photon fusion reaction at LEP has been performed using...
Two-particle angular correlations in $e^+ e^-$ interactions compared with QCD predictions (1998)
Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Alekseev, G D, ...
Two--particle angular correlations in jet cones have been measured in $e^+e^-$ annihilation into hadrons at LEP energies ($\sqrt{s}=$ 91 and 183~GeV) and are compared with QCD predictions using the...
Abreu, P, Adye, T, Adzic, P, Ajinenko, I, Alekseev, G D, Alemany, R, ...
The events with two photons and missing (transverse) energy collected by the DELPHI detector at centre-of-mass energies between 130~GeV and 183~GeV have been studied to search for processes of the...
Measurement of |V_{cs}| using W decays at LEP2 (1998)
Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Alekseev, G D, ...
Decays of $W^{\pm}$ bosons, produced at LEP2, have been used to measure the $|V_{cs}|$ element of the Cabibbo-Kobayashi-Maskawa matrix. Values for $|V_{cs}|$ were extracted both from the measured...
Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Alekseev, G D, ...
Data taken by DELPHI during the 1995 and 1996 LEP runs have been used to search for the supersymmetric partners of electron, muon and tau leptons and of top and bottom quarks. The observations are in...
Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Alekseev, G D, ...
The DELPHI experiment at LEP uses Ring Imaging Cherenkov detectors for particle identification. The good understanding of the RICH detectors allows the identification of charged pions, kaons and p...
Measurement of the $e^+ e^- \to \gamma\gamma (\gamma)$ cross section at the LEP energies (1998)
Abreu, P, Adam, W, Adye, T, Adzic, P, Alekseev, G D, Alemany, R, ...
The total and the differential cross-sections for the reaction $e^+e^-\rightarrow \gamma\gamma(\gamma)$ have been measured with the DELPHI detector at LEP % with at centre-of-mass energies from 1 30...
Measurement of the charged particle multiplicity of weakly decaying B hadrons (1998)
Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Alekseev, G D, ...
From the $Z$ decays recorded in 1994 and 1995 by the DELPHI detector at LEP, the charged particle multiplicity of weakly decaying $B$ hadrons was measured to be: \begin{center} $4.97 \pm 0.03 \pm...
Investigation of the splitting of quark and gluon jets (1998)
Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Alekseev, G D, ...
The splitting processes in identified quark and gluon jets are investigated using longitudinal and transverse observables. The jets are selected from symmetric three-jet events measured in Z decays L...
First evidence for a charm radial excitation, $D^{*}'$ (1998)
Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Alekseev, G D, ...
Using D$^{*+}$ mesons exclusively reconstructed in the DELPHI detector at LEP, an excess of $66\pm14(\mbox{stat.})$ events is observed in the D$^{*+}\pi^+\pi^-$ final state with a mass of...
A study of the hadronic resonance structure in the decay $\tau \to 3\pi\nu_{\tau}$ (1998)
Abreu, P, Adam, W, Adye, T, Adzic, P, Alekseev, G D, Alemany, R, ...
The hadronic structure of the decay of the $\tau$ lepton to three charged particles, $\tau\rightarrow 3\pi\nu_\tau$, is studied using data collected by the DELPHI detector at LEP between 1992 and...
Measurement of the inclusive charmless and double-charm B branching ratios (1998)
Abreu, P, Adam, W, Adye, T, Adzic, P, Alekseev, G D, Alemany, R, ...
The DELPHI experiment at LEP has measured the inclusive charmless $B$ hadron decay branching ratio, the $B$ branching ratio into two charmed particles, and the total number of charmed particles per...
Measurement of Trilinear Gauge Couplings in $e^+ e^-$ Collisions at 161 GeV and 172 GeV (1998)
Abreu, P, Adam, W, Adye, T, Adzic, P, Alekseev, G D, Alemany, R, ...
Trilinear gauge boson couplings are measured using data taken by DELPHI at 161~GeV and 172~GeV. Values for $WWV$ couplings ($V=Z, \gamma$) are determined from a study of the reactions \eeWW\ and...
Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Alekseev, G D, ...
From a data sample of $9.98 {\mathrm{~pb^{-1}}}$ integrated luminosity collected by DELPHI at a centre-of-mass energy of 172 GeV, 118 events were selected as W-pair candidates. From these, the...
A Search for $\eta'_c$ Production in Photon-Photon Fusion at LEP (1998)
Abreu, P., Adam, W., Adye, T., Adzic, P., Alekseev, G D., Alemany, R., ...
A search for the production of the $\eta'_c$ meson, the first radial excitation of the ground state of charmonium $\eta_c$(2980), in the photon-photon fusion reaction at LEP has been performed using...
Two-particle angular correlations in $e^+ e^-$ interactions compared with QCD predictions (1998)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Alekseev, G D., ...
Two--particle angular correlations in jet cones have been measured in $e^+e^-$ annihilation into hadrons at LEP energies ($\sqrt{s}=$ 91 and 183~GeV) and are compared with QCD predictions using the...
Search for charginos, neutralinos and gravitinos at LEP (1998)
Abreu, P., Adam, W., Adye, T., Ajinenko, I., Alekseev, G D., Alemany, R., ...
An update of the searches for charginos and neutralinos in DELPHI is presented, based mainly on recent data collected at centre-of-mass energies of 161~GeV and 172~GeV. No signal is found. %Except...
Rapidity Correlations in $\Lambda$ Baryon and Proton Production in Hadronic Z$^0$ Decays (1998)
Abreu, P., Adam, W., Adye, T., Ajinenko, I., Alekseev, G D., Alemany, R., ...
In an analysis of multihadronic events recorded at LEP by DELPHI in the years 1992 through 1994, charged hadrons are identified using the measurement of their energy loss and their Cherenkov angle....
Abreu, P., Adam, W., Adye, T., Ajinenko, I., Alekseev, G D., Alemany, R., ...
The data collected by DELPHI in 1996 have been used to measure the average charged particle multiplicities and dispersions in $q\bar{q}$ events at centre-of-mass energies of $\sqrt{s}=161$~GeV and...
Measurement of $\mid V_{cs} \mid$ using W decays at LEP2 (1998)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Alekseev, G D., ...
Decays of $W^{\pm}$ bosons, produced at LEP2, have been used to measure the $|V_{cs}|$ element of the Cabibbo-Kobayashi-Maskawa matrix. Values for $|V_{cs}|$ were extracted both from the measured...
Measurement of the inclusive charmless and double-charm B branching ratios (1998)
Abreu, P., Adam, W., Adye, T., Adzic, P., Alekseev, G D., Alemany, R., ...
The DELPHI experiment at LEP has measured the inclusive charmless $B$ hadron decay branching ratio, the $B$ branching ratio into two charmed particles, and the total number of charmed particles per...
Search for charged Higgs bosons in $e^+ e^-$ collisions at $\sqrt{s}$ = 172 GeV (1998)
Abreu, P., Adam, W., Adye, T., Adzic, P., Alekseev, G D., Alemany, R., ...
This paper presents results on charged Higgs boson production, based on LEP data collected at $\sqrt{s} = 172$ GeV, that complement the previous DELPHI results obtained at centre of mass energies up...
Measurement of the $e^+ e^- \to \gamma\gamma (\gamma)$ cross section at the LEP energies (1998)
Abreu, P., Adam, W., Adye, T., Adzic, P., Alekseev, G D., Alemany, R., ...
The total and the differential cross-sections for the reaction $e^+e^-\rightarrow \gamma\gamma(\gamma)$ have been measured with the DELPHI detector at LEP % with at centre-of-mass energies from 1 30...
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Alekseev, G D., ...
The DELPHI experiment at LEP uses Ring Imaging Cherenkov detectors for particle identification. The good understanding of the RICH detectors allows the identification of charged pions, kaons and p...
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Alekseev, G D., ...
From a data sample of $9.98 {\mathrm{~pb^{-1}}}$ integrated luminosity collected by DELPHI at a centre-of-mass energy of 172 GeV, 118 events were selected as W-pair candidates. From these, the...
Measurement of the charged particle multiplicity of weakly decaying B hadrons (1998)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Alekseev, G D., ...
From the $Z$ decays recorded in 1994 and 1995 by the DELPHI detector at LEP, the charged particle multiplicity of weakly decaying $B$ hadrons was measured to be: \begin{center} $4.97 \pm 0.03 \pm...
A study of the hadronic resonance structure in the decay $\tau \rightarrow 3 \pi \nu_{\tau}$ (1998)
Abreu, P., Adam, W., Adye, T., Adzic, P., Alekseev, G D., Alemany, R., ...
The hadronic structure of the decay of the $\tau$ lepton to three charged particles, $\tau\rightarrow 3\pi\nu_\tau$, is studied using data collected by the DELPHI detector at LEP between 1992 and...
Investigation of the splitting of quark and gluon jets (1998)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Alekseev, G D., ...
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Alekseev, G D., ...
A search for neutral and charged Higgs bosons has been performed in the data collected by the {\sc DELPHI} detector at centre-of-mass energies of 161~GeV and 172~GeV. The analysis assumes either the...
Measurement of Trilinear Gauge Couplings in $e^+ e^-$ Collisions at 161 GeV and 172 GeV (1998)
Abreu, P., Adam, W., Adye, T., Adzic, P., Alekseev, G D., Alemany, R., ...
Trilinear gauge boson couplings are measured using data taken by DELPHI at 161~GeV and 172~GeV. Values for $WWV$ couplings ($V=Z, \gamma$) are determined from a study of the reactions \eeWW\ and...
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Alekseev, G D., ...
The DELPHI experiment at LEP uses Ring Imaging Cherenkov detectors for particle identification. The good understanding of the RICH detectors allows the identification of charged pions, kaons and p...
Rapidity Correlations in $\Lambda$ Baryon and Proton Production in Hadronic Z$^0$ Decays (1998)
Abreu, P., Adam, W., Adye, T., Ajinenko, I., Alekseev, G D., Alemany, R., ...
In an analysis of multihadronic events recorded at LEP by DELPHI in the years 1992 through 1994, charged hadrons are identified using the measurement of their energy loss and their Cherenkov angle....
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Alekseev, G D., ...
A search for neutral and charged Higgs bosons has been performed in the data collected by the {\sc DELPHI} detector at centre-of-mass energies of 161~GeV and 172~GeV. The analysis assumes either the...
Investigation of the splitting of quark and gluon jets (1998)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Alekseev, G D., ...
Measurement of Trilinear Gauge Couplings in $e^+ e^-$ Collisions at 161 GeV and 172 GeV (1998)
Abreu, P., Adam, W., Adye, T., Adzic, P., Alekseev, G D., Alemany, R., ...
Trilinear gauge boson couplings are measured using data taken by DELPHI at 161~GeV and 172~GeV. Values for $WWV$ couplings ($V=Z, \gamma$) are determined from a study of the reactions \eeWW\ and...
Measurement of the charged particle multiplicity of weakly decaying B hadrons (1998)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Alekseev, G D., ...
From the $Z$ decays recorded in 1994 and 1995 by the DELPHI detector at LEP, the charged particle multiplicity of weakly decaying $B$ hadrons was measured to be: \begin{center} $4.97 \pm 0.03 \pm...
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Alekseev, G D., ...
From a data sample of $9.98 {\mathrm{~pb^{-1}}}$ integrated luminosity collected by DELPHI at a centre-of-mass energy of 172 GeV, 118 events were selected as W-pair candidates. From these, the...
Measurement of the $e^+ e^- \to \gamma\gamma (\gamma)$ cross section at the LEP energies (1998)
Abreu, P., Adam, W., Adye, T., Adzic, P., Alekseev, G D., Alemany, R., ...
The total and the differential cross-sections for the reaction $e^+e^-\rightarrow \gamma\gamma(\gamma)$ have been measured with the DELPHI detector at LEP % with at centre-of-mass energies from 1 30...
Search for charged Higgs bosons in $e^+ e^-$ collisions at $\sqrt{s}$ = 172 GeV (1998)
Abreu, P., Adam, W., Adye, T., Adzic, P., Alekseev, G D., Alemany, R., ...
This paper presents results on charged Higgs boson production, based on LEP data collected at $\sqrt{s} = 172$ GeV, that complement the previous DELPHI results obtained at centre of mass energies up...
Measurement of the inclusive charmless and double-charm B branching ratios (1998)
Abreu, P., Adam, W., Adye, T., Adzic, P., Alekseev, G D., Alemany, R., ...
The DELPHI experiment at LEP has measured the inclusive charmless $B$ hadron decay branching ratio, the $B$ branching ratio into two charmed particles, and the total number of charmed particles per...
Measurement of $\mid V_{cs} \mid$ using W decays at LEP2 (1998)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Alekseev, G D., ...
Decays of $W^{\pm}$ bosons, produced at LEP2, have been used to measure the $|V_{cs}|$ element of the Cabibbo-Kobayashi-Maskawa matrix. Values for $|V_{cs}|$ were extracted both from the measured...
Abreu, P., Adam, W., Adye, T., Ajinenko, I., Alekseev, G D., Alemany, R., ...
The data collected by DELPHI in 1996 have been used to measure the average charged particle multiplicities and dispersions in $q\bar{q}$ events at centre-of-mass energies of $\sqrt{s}=161$~GeV and...
Search for charginos, neutralinos and gravitinos at LEP (1998)
Abreu, P., Adam, W., Adye, T., Ajinenko, I., Alekseev, G D., Alemany, R., ...
An update of the searches for charginos and neutralinos in DELPHI is presented, based mainly on recent data collected at centre-of-mass energies of 161~GeV and 172~GeV. No signal is found. %Except...
Two-particle angular correlations in $e^+ e^-$ interactions compared with QCD predictions (1998)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Alekseev, G D., ...
Two--particle angular correlations in jet cones have been measured in $e^+e^-$ annihilation into hadrons at LEP energies ($\sqrt{s}=$ 91 and 183~GeV) and are compared with QCD predictions using the...
A Search for $\eta'_c$ Production in Photon-Photon Fusion at LEP (1998)
Abreu, P., Adam, W., Adye, T., Adzic, P., Alekseev, G D., Alemany, R., ...
A search for the production of the $\eta'_c$ meson, the first radial excitation of the ground state of charmonium $\eta_c$(2980), in the photon-photon fusion reaction at LEP has been performed using...
A study of the hadronic resonance structure in the decay $\tau \rightarrow 3 \pi \nu_{\tau}$ (1998)
Abreu, P., Adam, W., Adye, T., Adzic, P., Alekseev, G D., Alemany, R., ...
The hadronic structure of the decay of the $\tau$ lepton to three charged particles, $\tau\rightarrow 3\pi\nu_\tau$, is studied using data collected by the DELPHI detector at LEP between 1992 and...
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Alekseev, G D., ...
The DELPHI experiment at LEP uses Ring Imaging Cherenkov detectors for particle identification. The good understanding of the RICH detectors allows the identification of charged pions, kaons and p...
Rapidity Correlations in $\Lambda$ Baryon and Proton Production in Hadronic Z$^0$ Decays (1998)
Abreu, P., Adam, W., Adye, T., Ajinenko, I., Alekseev, G D., Alemany, R., ...
In an analysis of multihadronic events recorded at LEP by DELPHI in the years 1992 through 1994, charged hadrons are identified using the measurement of their energy loss and their Cherenkov angle....
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Alekseev, G D., ...
A search for neutral and charged Higgs bosons has been performed in the data collected by the {\sc DELPHI} detector at centre-of-mass energies of 161~GeV and 172~GeV. The analysis assumes either the...
Investigation of the splitting of quark and gluon jets (1998)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Alekseev, G D., ...
Measurement of Trilinear Gauge Couplings in $e^+ e^-$ Collisions at 161 GeV and 172 GeV (1998)
Abreu, P., Adam, W., Adye, T., Adzic, P., Alekseev, G D., Alemany, R., ...
Trilinear gauge boson couplings are measured using data taken by DELPHI at 161~GeV and 172~GeV. Values for $WWV$ couplings ($V=Z, \gamma$) are determined from a study of the reactions \eeWW\ and...
Measurement of the charged particle multiplicity of weakly decaying B hadrons (1998)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Alekseev, G D., ...
From the $Z$ decays recorded in 1994 and 1995 by the DELPHI detector at LEP, the charged particle multiplicity of weakly decaying $B$ hadrons was measured to be: \begin{center} $4.97 \pm 0.03 \pm...
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Alekseev, G D., ...
From a data sample of $9.98 {\mathrm{~pb^{-1}}}$ integrated luminosity collected by DELPHI at a centre-of-mass energy of 172 GeV, 118 events were selected as W-pair candidates. From these, the...
Measurement of the $e^+ e^- \to \gamma\gamma (\gamma)$ cross section at the LEP energies (1998)
Abreu, P., Adam, W., Adye, T., Adzic, P., Alekseev, G D., Alemany, R., ...
The total and the differential cross-sections for the reaction $e^+e^-\rightarrow \gamma\gamma(\gamma)$ have been measured with the DELPHI detector at LEP % with at centre-of-mass energies from 1 30...
Search for charged Higgs bosons in $e^+ e^-$ collisions at $\sqrt{s}$ = 172 GeV (1998)
Abreu, P., Adam, W., Adye, T., Adzic, P., Alekseev, G D., Alemany, R., ...
This paper presents results on charged Higgs boson production, based on LEP data collected at $\sqrt{s} = 172$ GeV, that complement the previous DELPHI results obtained at centre of mass energies up...
Measurement of the inclusive charmless and double-charm B branching ratios (1998)
Abreu, P., Adam, W., Adye, T., Adzic, P., Alekseev, G D., Alemany, R., ...
The DELPHI experiment at LEP has measured the inclusive charmless $B$ hadron decay branching ratio, the $B$ branching ratio into two charmed particles, and the total number of charmed particles per...
Measurement of $\mid V_{cs} \mid$ using W decays at LEP2 (1998)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Alekseev, G D., ...
Decays of $W^{\pm}$ bosons, produced at LEP2, have been used to measure the $|V_{cs}|$ element of the Cabibbo-Kobayashi-Maskawa matrix. Values for $|V_{cs}|$ were extracted both from the measured...
Abreu, P., Adam, W., Adye, T., Ajinenko, I., Alekseev, G D., Alemany, R., ...
The data collected by DELPHI in 1996 have been used to measure the average charged particle multiplicities and dispersions in $q\bar{q}$ events at centre-of-mass energies of $\sqrt{s}=161$~GeV and...
Search for charginos, neutralinos and gravitinos at LEP (1998)
Abreu, P., Adam, W., Adye, T., Ajinenko, I., Alekseev, G D., Alemany, R., ...
An update of the searches for charginos and neutralinos in DELPHI is presented, based mainly on recent data collected at centre-of-mass energies of 161~GeV and 172~GeV. No signal is found. %Except...
Two-particle angular correlations in $e^+ e^-$ interactions compared with QCD predictions (1998)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Alekseev, G D., ...
Two--particle angular correlations in jet cones have been measured in $e^+e^-$ annihilation into hadrons at LEP energies ($\sqrt{s}=$ 91 and 183~GeV) and are compared with QCD predictions using the...
A Search for $\eta'_c$ Production in Photon-Photon Fusion at LEP (1998)
Abreu, P., Adam, W., Adye, T., Adzic, P., Alekseev, G D., Alemany, R., ...
A search for the production of the $\eta'_c$ meson, the first radial excitation of the ground state of charmonium $\eta_c$(2980), in the photon-photon fusion reaction at LEP has been performed using...
A study of the hadronic resonance structure in the decay $\tau \rightarrow 3 \pi \nu_{\tau}$ (1998)
Abreu, P., Adam, W., Adye, T., Adzic, P., Alekseev, G D., Alemany, R., ...
The hadronic structure of the decay of the $\tau$ lepton to three charged particles, $\tau\rightarrow 3\pi\nu_\tau$, is studied using data collected by the DELPHI detector at LEP between 1992 and...
Search for charged Higgs bosons in $e^+ e^-$ collisions at $\sqrt{s}$ = 172 GeV (1997)
Abreu, P, Adam, W, Adye, T, Adzic, P, Alekseev, G D, Alemany, R, ...
This paper presents results on charged Higgs boson production, based on LEP data collected at $\sqrt{s} = 172$ GeV, that complement the previous DELPHI results obtained at centre of mass energies up...
Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Alekseev, G D, ...
The value of the $b$ quark mass at the $M_Z$ scale defined in the $\overline{MS}$ renormalization scheme, $m_b(M_Z)$, is determined using 2.8 million hadronic Z decays collected during 1992-1994 by...
Abreu, P, Adam, W, Adye, T, Ajinenko, I, Alekseev, G D, Alemany, R, ...
The data collected by DELPHI in 1996 have been used to measure the average charged particle multiplicities and dispersions in $q\bar{q}$ events at centre-of-mass energies of $\sqrt{s}=161$~GeV and...
Search for $B^{0}_s -\overline{B^{0}_s}$ oscillations (1997)
Adam, W, Adye, T, Ajinenko, I, Alekseev, G D, Alemany, R, Allport, P P, ...
was obtained by combining the results obtained in three channels.
Measurement of the triple gluon vertex from double quark tagged 4-jet events (1997)
Abreu, P, Adam, W, Adye, T, Adzic, P, Alekseev, G D, Alemany, R, ...
The 4-jet events collected by the DELPHI experiment at LEP1 in 1992, 1993 and 1994 are analysed to determine the contribution of the triple-gluon vertex. Two of the four jets are tagged as jets from...
Measurement of the Quark and Gluon Fragmentation Functions in $Z^0$ Hadronic Decays (1997)
Abreu, P, Adam, W, Adye, T, Ajinenko, I, Alekseev, G D, Alemany, R, ...
The fragmentation functions and multiplicities in $b\overline{b}$ and light quark events are compared. The measured transverse and longitudinal components of the fragmentation function allow the...
Search for charginos, neutralinos and gravitinos at LEP (1997)
Abreu, P, Adam, W, Adye, T, Ajinenko, I, Alekseev, G D, Alemany, R, ...
An update of the searches for charginos and neutralinos in DELPHI is presented, based mainly on recent data collected at centre-of-mass energies of 161~GeV and 172~GeV. No signal is found. Except for...
Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Alekseev, G D, ...
A search for neutral and charged Higgs bosons has been performed in the data collected by the {\sc DELPHI} detector at centre-of-mass energies of 161~GeV and 172~GeV. The analysis assumes either the...
Observation of charge ordering in particle production in hadronic $Z^0$ decay (1997)
Abreu, P, Adam, W, Adye, T, Adzic, P, Alekseev, G D, Alemany, R, ...
Analysis of the rapidity structure of charge correlations in hadronic events from $Z^0$ decays gives evidence for chain-like charge-ordering of particle production along the thrust axis, as predicted...
Abreu, P, Adam, W, Adye, T, Alekseev, G D, Alemany, R, Allport, P P, ...
The spin density matrix elements for the $\rho^0$, K$^{*0}(892)$ and $\phi$ produced in hadronic Z$^0$ decays are measured in the DELPHI detector. There is no evidence for spin alignment of the...
Measurement of $B^0_d$ - $\overline B^0_d$ oscillations (1997)
Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Alekseev, G D, ...
\Delta m_d = 0.496 \pm 0.034 ~ \mbox{ps}^{-1}.
Abreu, P, Adam, W, Adye, T, Ajinenko, I, Alekseev, G D, Alemany, R, ...
A study of the channel $e^{+}e^{-}~\rightarrow~\mu^{+}\mu^{-}\gamma_{\ sc ISR}$, where $\gamma_{\sc ISR}$ is an initial state radiation photon, is presented using data collected by the DELPHI...
Abreu, P, Adam, W, Adye, T, Ajinenko, I, Alekseev, G D, Alemany, R, ...
This result LZalews
Measurement of the transverse spin correlation in $Z \to \tau^+\tau^-$ decays (1997)
Abreu, P, Adam, W, Adye, T, Ajinenko, I, Alekseev, G D, Alemany, R, ...
The measurement of the correlation between the transverse spin components of $\tau^+\tau^-$ pairs collected during 1992 to 1994 with the DELPHI detector at LEP1 is presented. A value \begin{center}...
Abreu, P, Adam, W, Adye, T, Ajinenko, I, Alekseev, G D, Alemany, R, ...
Correlations between pions from different Ws in $e^+e^-
Rapidity correlations in $\Lambda$ baryon and proton production in hadronic $Z^0$ decays (1997)
Abreu, P, Adam, W, Adye, T, Ajinenko, I, Alekseev, G D, Alemany, R, ...
In an analysis of multihadronic events recorded at LEP by DELPHI in the years 1992 through 1994, charged hadrons are identified using the measurement of their energy loss and their Cherenkov angle....
Abreu, P, Adam, W, Adye, T, Adzic, P, Ajinenko, I, Alekseev, G D, ...
In 1996 LEP ran at a centre-of-mass energy of 161~GeV, just above the threshold of W-pair production. DELPHI accumulated data corresponding to an integrated luminosity of $9.93 {\mathrm{~pb^{-1}}}$,...
Identified particles in quark and gluon jets (1997)
Abreu, P, Adam, W, Adye, T, Ajinenko, I, Alekseev, G D, Alemany, R, ...
A sample of about 1.4 million hadronic \z decays, selected among the data recorded by the DELPHI detector at LEP during 1994, was used to measure for the first time the momentum spectra of \kp, \ko,...
Abreu, P, Adam, W, Adye, T, Ajinenko, I, Alekseev, G D, Alemany, R, ...
A search for stable or long-lived heavy charged particles in $e^+e^-$ interactions at energies of 130-136, 161 and 172 GeV has been performed using the data taken by the DELPHI experiment at LEP. The...
Search for the $B_c$ meson (1997)
Abreu, P, Adam, W, Adye, T, Ajinenko, I, Alekseev, G D, Alemany, R, ...
constant over the range of predicted $B_c\upm$ lifetimes.
Search for Neutral Heavy Leptons Produced in Z Decays (1997)
Abreu, P, Adam, W, Adye, T, Ajinenko, I, Alekseev, G D, Alemany, R, ...
Weak isosinglet Neutral Heavy Leptons ($\nu_m$) have been searched for using data collected by the DELPHI detector corresponding to $3.3\times 10^{6}$ hadronic~Z$^{0}$ decays at LEP1. Four separate...
A Measurement of $\alpha_s$ from the Scaling Violation in $e^+ e^-$ Annihilation (1997)
Abreu, P, Adam, W, Adye, T, Ajinenko, I, Alekseev, G D, Alemany, R, ...
The hadronic fragmentation functions of the various quark flavours and of gluons are measured in a study of the inclusive hadron production from $\zz$ decays with the DELPHI detector and are compared...
Search for excited leptons in $e^+ e^-$ collisions at $\sqrt{s}$ = 161 gev (1997)
Abreu, P., Adam, W., Adye, T., Azhinenko, I., Alekseev, G.D., Alemany, R., ...
A search with the DELPHI detector at LEP for excited leptons ($e^*$, $\mu^*$, $\tau^*$ and $\nu^*$) decaying through $\gamma$, W or Z transitions is reported. The data used correspond to an...
Search for new phenomena using single photon events at Lep1 (1997)
Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...
Data are presented on the reaction \epem~\into~\gamma + no other detected particle at center-of-mass energies, \sqs = 89.48 GeV, 91.26 GeV and 93.08 GeV. The cross section for this reaction is...
Search for Neutral Heavy Leptons Produced in Z Decays (1997)
Abreu, P., Adam, W., Adye, T., Ajinenko, I., Alekseev, G D., Alemany, R., ...
Weak isosinglet Neutral Heavy Leptons ($\nu_m$) have been searched for using data collected by the DELPHI detector corresponding to $3.3\times 10^{6}$ hadronic~Z$^{0}$ decays at LEP1. Four separate...
Measurement of Event Shape and Inclusive Distributions at $\sqrt{s} =$ 130 and 136 GeV (1997)
Abreu, P., Adam, W., Adye, T., Ajinenko, I., Alekseev, G D., Alemany, R., ...
Inclusive charged particle and event shape distributions are measured using 321 hadronic events collected with the DELPHI experiment at LEP at effective centre of mass energies of 130 to 136 GeV....
Measurement of $B^0_d$ - $\overline B^0_d$ oscillations (1997)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Alekseev, G D., ...
${B}^0_d$ meson oscillations are measured in hadronic $\Zz$ decays using the charge of a lepton or the mean charge of an event hemisphere to sign the presence of a $b$ or a $\overline{b}$ quark when...
Search for Lepton Flavour Number violating Z$^0$-Decays (1997)
Abreu, P., Adam, W., Adye, T., Ajinenko, I., Alekseev, G D., Alemany, R., ...
A search for lepton flavour number violating $Z^0$ decays in the channels \begin{center} $Z^0\rightarrow \mu\tau$,\\ $Z^0\rightarrow e\tau$, \\ $Z^0\rightarrow e\mu$, \\ \end{center} using the DELPHI...
Measurement of the triple gluon vertex from double quark tagged 4-jet event (1997)
Abreu, P., Adam, W., Adye, T., Adzic, P., Alekseev, G D., Alemany, R., ...
The 4-jet events collected by the DELPHI experiment at LEP1 in 1992, 1993 and 1994 are analysed to determine the contribution of the triple-gluon vertex. Two of the four jets are tagged as jets from...
Identified particles in quark and gluon jets (1997)
Abreu, P., Adam, W., Adye, T., Ajinenko, I., Alekseev, G D., Alemany, R., ...
A sample of about 1.4 million hadronic \z decays, selected among the data recorded by the DELPHI detector at LEP during 1994, was used to measure for the first time the momentum spectra of \kp, \ko,...
Search for the $B_c$ meson (1997)
Abreu, P., Adam, W., Adye, T., Ajinenko, I., Alekseev, G D., Alemany, R., ...
In a sample of 3.02 million hadronic $Z^o$ decays collected by the DELPHI detector, 270 $J/\psi \into$ \lplm candidates have been selected. A search for fully reconstructed $B_c\upm$ mesons has...
A Measurement of $\alpha_s$ from the scaling violation in $e^+ e^-$ annihilation (1997)
Abreu, P., Adam, W., Adye, T., Ajinenko, I., Alekseev, G D., Alemany, R., ...
The hadronic fragmentation functions of the various quark flavours and of gluons are measured in a study of the inclusive hadron production from $\zz$ decays with the DELPHI detector and are compared...
Abreu, P., Adam, W., Adye, T., Ajinenko, I., Alekseev, G D., Alemany, R., ...
A search for stable or long-lived heavy charged particles in $e^+e^-$ interactions at energies of 130-136, 161 and 172 GeV has been performed using the data taken by the DELPHI experiment at LEP. The...
Abreu, P., Adam, W., Adye, T., Ajinenko, I., Alekseev, G D., Alemany, R., ...
Correlations between pions from different Ws in $e^+e^- rightarrow$W$^+$W$^-$ events are studied using data collected by the DELPHI detector at LEP running at a centre-of-mass energy of 172 GeV in...
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Alekseev, G D., ...
In 1996 LEP ran at a centre-of-mass energy of 161~GeV, just above the threshold of W-pair production. DELPHI accumulated data corresponding to an integrated luminosity of $9.93 {\mathrm{~pb^{-1}}}$,...
Abreu, P., Adam, W., Adye, T., Ajinenko, I., Alekseev, G D., Alemany, R., ...
An inclusive measurement of the average multiplicity of $b \bar b$ pairs from gluons, \gb, in hadronic $Z^0$ events collected by the DELPHI experiment at LEP, is presented. A counting technique,...
Measurement of the transverse spin correlation in $Z \to \tau^+\tau^-$ decays (1997)
Abreu, P., Adam, W., Adye, T., Ajinenko, I., Alekseev, G D., Alemany, R., ...
The measurement of the correlation between the transverse spin components of $\tau^+\tau^-$ pairs collected during 1992 to 1994 with the DELPHI detector at LEP1 is presented. A value \begin{center}...
Abreu, P., Adam, W., Adye, T., Ajinenko, I., Alekseev, G D., Alemany, R., ...
A study of the channel $e^{+}e^{-}~\rightarrow~\mu^{+}\mu^{-}\gamma_{\ sc ISR}$, where $\gamma_{\sc ISR}$ is an initial state radiation photon, is presented using data collected by the DELPHI...
Observation of charge ordering in particle production in hadronic Z$^0$ decay (1997)
Abreu, P., Adam, W., Adye, T., Adzic, P., Alekseev, G D., Alemany, R., ...
Analysis of the rapidity structure of charge correlations in hadronic events from $Z^0$ decays gives evidence for chain-like charge-ordering of particle production along the thrust axis, as predicted...
Search for $B_s^0-\overline{B_s^0}$ oscillations (1997)
Adam, W., Adye, T., Ajinenko, I., Alekseev, G D., Alemany, R., Allport, P P., ...
Oscillations of $\mbox{B}^0_{\mathrm s}$ mesons were studied in events with a large transverse momentum lepton selected from 3.2 million hadronic $\Zz$ decays registered by DELPHI between 1991 and...
Measurement of Event Shape and Inclusive Distributions at $\sqrt{s} =$ 130 and 136 GeV (1997)
Abreu, P., Adam, W., Adye, T., Ajinenko, I., Alekseev, G D., Alemany, R., ...
Inclusive charged particle and event shape distributions are measured using 321 hadronic events collected with the DELPHI experiment at LEP at effective centre of mass energies of 130 to 136 GeV....
Search for the $B_c$ meson (1997)
Abreu, P., Adam, W., Adye, T., Ajinenko, I., Alekseev, G D., Alemany, R., ...
In a sample of 3.02 million hadronic $Z^o$ decays collected by the DELPHI detector, 270 $J/\psi \into$ \lplm candidates have been selected. A search for fully reconstructed $B_c\upm$ mesons has...
Abreu, P., Adam, W., Adye, T., Ajinenko, I., Alekseev, G D., Alemany, R., ...
A study of the channel $e^{+}e^{-}~\rightarrow~\mu^{+}\mu^{-}\gamma_{\ sc ISR}$, where $\gamma_{\sc ISR}$ is an initial state radiation photon, is presented using data collected by the DELPHI...
Abreu, P., Adam, W., Adye, T., Ajinenko, I., Alekseev, G D., Alemany, R., ...
Correlations between pions from different Ws in $e^+e^- rightarrow$W$^+$W$^-$ events are studied using data collected by the DELPHI detector at LEP running at a centre-of-mass energy of 172 GeV in...
Observation of charge ordering in particle production in hadronic Z$^0$ decay (1997)
Abreu, P., Adam, W., Adye, T., Adzic, P., Alekseev, G D., Alemany, R., ...
Analysis of the rapidity structure of charge correlations in hadronic events from $Z^0$ decays gives evidence for chain-like charge-ordering of particle production along the thrust axis, as predicted...
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Alekseev, G D., ...
In 1996 LEP ran at a centre-of-mass energy of 161~GeV, just above the threshold of W-pair production. DELPHI accumulated data corresponding to an integrated luminosity of $9.93 {\mathrm{~pb^{-1}}}$,...
Abreu, P., Adam, W., Adye, T., Ajinenko, I., Alekseev, G D., Alemany, R., ...
A search for stable or long-lived heavy charged particles in $e^+e^-$ interactions at energies of 130-136, 161 and 172 GeV has been performed using the data taken by the DELPHI experiment at LEP. The...
A Measurement of $\alpha_s$ from the scaling violation in $e^+ e^-$ annihilation (1997)
Abreu, P., Adam, W., Adye, T., Ajinenko, I., Alekseev, G D., Alemany, R., ...
The hadronic fragmentation functions of the various quark flavours and of gluons are measured in a study of the inclusive hadron production from $\zz$ decays with the DELPHI detector and are compared...
Identified particles in quark and gluon jets (1997)
Abreu, P., Adam, W., Adye, T., Ajinenko, I., Alekseev, G D., Alemany, R., ...
A sample of about 1.4 million hadronic \z decays, selected among the data recorded by the DELPHI detector at LEP during 1994, was used to measure for the first time the momentum spectra of \kp, \ko,...
Search for Neutral Heavy Leptons Produced in Z Decays (1997)
Abreu, P., Adam, W., Adye, T., Ajinenko, I., Alekseev, G D., Alemany, R., ...
Weak isosinglet Neutral Heavy Leptons ($\nu_m$) have been searched for using data collected by the DELPHI detector corresponding to $3.3\times 10^{6}$ hadronic~Z$^{0}$ decays at LEP1. Four separate...
Measurement of the triple gluon vertex from double quark tagged 4-jet event (1997)
Abreu, P., Adam, W., Adye, T., Adzic, P., Alekseev, G D., Alemany, R., ...
The 4-jet events collected by the DELPHI experiment at LEP1 in 1992, 1993 and 1994 are analysed to determine the contribution of the triple-gluon vertex. Two of the four jets are tagged as jets from...
Search for $B_s^0-\overline{B_s^0}$ oscillations (1997)
Adam, W., Adye, T., Ajinenko, I., Alekseev, G D., Alemany, R., Allport, P P., ...
Oscillations of $\mbox{B}^0_{\mathrm s}$ mesons were studied in events with a large transverse momentum lepton selected from 3.2 million hadronic $\Zz$ decays registered by DELPHI between 1991 and...
Measurement of the transverse spin correlation in $Z \to \tau^+\tau^-$ decays (1997)
Abreu, P., Adam, W., Adye, T., Ajinenko, I., Alekseev, G D., Alemany, R., ...
The measurement of the correlation between the transverse spin components of $\tau^+\tau^-$ pairs collected during 1992 to 1994 with the DELPHI detector at LEP1 is presented. A value \begin{center}...
Abreu, P., Adam, W., Adye, T., Ajinenko, I., Alekseev, G D., Alemany, R., ...
An inclusive measurement of the average multiplicity of $b \bar b$ pairs from gluons, \gb, in hadronic $Z^0$ events collected by the DELPHI experiment at LEP, is presented. A counting technique,...
Search for Lepton Flavour Number violating Z$^0$-Decays (1997)
Abreu, P., Adam, W., Adye, T., Ajinenko, I., Alekseev, G D., Alemany, R., ...
A search for lepton flavour number violating $Z^0$ decays in the channels \begin{center} $Z^0\rightarrow \mu\tau$,\\ $Z^0\rightarrow e\tau$, \\ $Z^0\rightarrow e\mu$, \\ \end{center} using the DELPHI...
Measurement of $B^0_d$ - $\overline B^0_d$ oscillations (1997)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Alekseev, G D., ...
${B}^0_d$ meson oscillations are measured in hadronic $\Zz$ decays using the charge of a lepton or the mean charge of an event hemisphere to sign the presence of a $b$ or a $\overline{b}$ quark when...
Search for excited leptons in $e^+ e^-$ collisions at $\sqrt{s}$ = 161 gev (1997)
Abreu, P., Adam, W., Adye, T., Azhinenko, I., Alekseev, G.D., Alemany, R., ...
A search with the DELPHI detector at LEP for excited leptons ($e^*$, $\mu^*$, $\tau^*$ and $\nu^*$) decaying through $\gamma$, W or Z transitions is reported. The data used correspond to an...
Search for new phenomena using single photon events at Lep1 (1997)
Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...
Data are presented on the reaction \epem~\into~\gamma + no other detected particle at center-of-mass energies, \sqs = 89.48 GeV, 91.26 GeV and 93.08 GeV. The cross section for this reaction is...
Measurement of Event Shape and Inclusive Distributions at $\sqrt{s} =$ 130 and 136 GeV (1997)
Abreu, P., Adam, W., Adye, T., Ajinenko, I., Alekseev, G D., Alemany, R., ...
Inclusive charged particle and event shape distributions are measured using 321 hadronic events collected with the DELPHI experiment at LEP at effective centre of mass energies of 130 to 136 GeV....
Search for the $B_c$ meson (1997)
Abreu, P., Adam, W., Adye, T., Ajinenko, I., Alekseev, G D., Alemany, R., ...
In a sample of 3.02 million hadronic $Z^o$ decays collected by the DELPHI detector, 270 $J/\psi \into$ \lplm candidates have been selected. A search for fully reconstructed $B_c\upm$ mesons has...
Abreu, P., Adam, W., Adye, T., Ajinenko, I., Alekseev, G D., Alemany, R., ...
A study of the channel $e^{+}e^{-}~\rightarrow~\mu^{+}\mu^{-}\gamma_{\ sc ISR}$, where $\gamma_{\sc ISR}$ is an initial state radiation photon, is presented using data collected by the DELPHI...
Abreu, P., Adam, W., Adye, T., Ajinenko, I., Alekseev, G D., Alemany, R., ...
Correlations between pions from different Ws in $e^+e^- rightarrow$W$^+$W$^-$ events are studied using data collected by the DELPHI detector at LEP running at a centre-of-mass energy of 172 GeV in...
Observation of charge ordering in particle production in hadronic Z$^0$ decay (1997)
Abreu, P., Adam, W., Adye, T., Adzic, P., Alekseev, G D., Alemany, R., ...
Analysis of the rapidity structure of charge correlations in hadronic events from $Z^0$ decays gives evidence for chain-like charge-ordering of particle production along the thrust axis, as predicted...
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Alekseev, G D., ...
In 1996 LEP ran at a centre-of-mass energy of 161~GeV, just above the threshold of W-pair production. DELPHI accumulated data corresponding to an integrated luminosity of $9.93 {\mathrm{~pb^{-1}}}$,...
Abreu, P., Adam, W., Adye, T., Ajinenko, I., Alekseev, G D., Alemany, R., ...
A search for stable or long-lived heavy charged particles in $e^+e^-$ interactions at energies of 130-136, 161 and 172 GeV has been performed using the data taken by the DELPHI experiment at LEP. The...
A Measurement of $\alpha_s$ from the scaling violation in $e^+ e^-$ annihilation (1997)
Abreu, P., Adam, W., Adye, T., Ajinenko, I., Alekseev, G D., Alemany, R., ...
The hadronic fragmentation functions of the various quark flavours and of gluons are measured in a study of the inclusive hadron production from $\zz$ decays with the DELPHI detector and are compared...
Identified particles in quark and gluon jets (1997)
Abreu, P., Adam, W., Adye, T., Ajinenko, I., Alekseev, G D., Alemany, R., ...
A sample of about 1.4 million hadronic \z decays, selected among the data recorded by the DELPHI detector at LEP during 1994, was used to measure for the first time the momentum spectra of \kp, \ko,...
Search for Neutral Heavy Leptons Produced in Z Decays (1997)
Abreu, P., Adam, W., Adye, T., Ajinenko, I., Alekseev, G D., Alemany, R., ...
Weak isosinglet Neutral Heavy Leptons ($\nu_m$) have been searched for using data collected by the DELPHI detector corresponding to $3.3\times 10^{6}$ hadronic~Z$^{0}$ decays at LEP1. Four separate...
Measurement of the triple gluon vertex from double quark tagged 4-jet event (1997)
Abreu, P., Adam, W., Adye, T., Adzic, P., Alekseev, G D., Alemany, R., ...
The 4-jet events collected by the DELPHI experiment at LEP1 in 1992, 1993 and 1994 are analysed to determine the contribution of the triple-gluon vertex. Two of the four jets are tagged as jets from...
Search for $B_s^0-\overline{B_s^0}$ oscillations (1997)
Adam, W., Adye, T., Ajinenko, I., Alekseev, G D., Alemany, R., Allport, P P., ...
Oscillations of $\mbox{B}^0_{\mathrm s}$ mesons were studied in events with a large transverse momentum lepton selected from 3.2 million hadronic $\Zz$ decays registered by DELPHI between 1991 and...
Measurement of the transverse spin correlation in $Z \to \tau^+\tau^-$ decays (1997)
Abreu, P., Adam, W., Adye, T., Ajinenko, I., Alekseev, G D., Alemany, R., ...
The measurement of the correlation between the transverse spin components of $\tau^+\tau^-$ pairs collected during 1992 to 1994 with the DELPHI detector at LEP1 is presented. A value \begin{center}...
Abreu, P., Adam, W., Adye, T., Ajinenko, I., Alekseev, G D., Alemany, R., ...
An inclusive measurement of the average multiplicity of $b \bar b$ pairs from gluons, \gb, in hadronic $Z^0$ events collected by the DELPHI experiment at LEP, is presented. A counting technique,...
Search for Lepton Flavour Number violating Z$^0$-Decays (1997)
Abreu, P., Adam, W., Adye, T., Ajinenko, I., Alekseev, G D., Alemany, R., ...
A search for lepton flavour number violating $Z^0$ decays in the channels \begin{center} $Z^0\rightarrow \mu\tau$,\\ $Z^0\rightarrow e\tau$, \\ $Z^0\rightarrow e\mu$, \\ \end{center} using the DELPHI...
Measurement of $B^0_d$ - $\overline B^0_d$ oscillations (1997)
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Alekseev, G D., ...
${B}^0_d$ meson oscillations are measured in hadronic $\Zz$ decays using the charge of a lepton or the mean charge of an event hemisphere to sign the presence of a $b$ or a $\overline{b}$ quark when...
Search for excited leptons in $e^+ e^-$ collisions at $\sqrt{s}$ = 161 gev (1997)
Abreu, P., Adam, W., Adye, T., Azhinenko, I., Alekseev, G.D., Alemany, R., ...
A search with the DELPHI detector at LEP for excited leptons ($e^*$, $\mu^*$, $\tau^*$ and $\nu^*$) decaying through $\gamma$, W or Z transitions is reported. The data used correspond to an...
Search for new phenomena using single photon events at Lep1 (1997)
Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...
Data are presented on the reaction \epem~\into~\gamma + no other detected particle at center-of-mass energies, \sqs = 89.48 GeV, 91.26 GeV and 93.08 GeV. The cross section for this reaction is...
Search for excited leptons in $e^+ e^-$ collisions at $\sqrt{s}$ =161 GeV (1996)
Abreu, P, Adam, W, Adye, T, Ajinenko, I, Alekseev, G D, Alemany, R, ...
A search with the DELPHI detector at LEP for excited leptons ($e^*$, $\mu^*$, $\tau^*$ and $\nu^*$) decaying through $\gamma$, W or Z transitions is reported. The data used correspond to an...
A precise measurement of the $B^{0}_{d}$ meson lifetime using a new technique (1996)
Abreu, P, Adam, W, Adye, T, Ajinenko, I, Alekseev, G D, Alemany, R, ...
From data recorded by DELPHI between 1991 and 1994, which correspond to 3.2 million hadronic $\mbox{Z}^0$ decays, a measurement of the $\Bdb$ meson lifetime has been performed based on the inclusive...
Search for Lepton Flavour Number violating $Z^0$-Decays (1996)
Abreu, P, Adam, W, Adye, T, Ajinenko, I, Alekseev, G D, Alemany, R, ...
A search for lepton flavour number violating $Z^0$ decays in the channels \begin{center} $Z^0\rightarrow \mu\tau$,\\ $Z^0\rightarrow e\tau$, \\ $Z^0\rightarrow e\mu$, \\ \end{center} using the DELPHI...
Measurement of Event Shape and Inclusive Distributions at $\sqrt{s} =$ 130 and 136 GeV (1996)
Abreu, P, Adam, W, Adye, T, Ajinenko, I, Alekseev, G D, Alemany, R, ...
%\noindent from the high energy data.
An Upper Limit for $Br(Z^0 \rightarrow ggg)$ from Symmetric 3-jet $Z^0$ Hadronic Decays (1996)
Abreu, P, Adam, W, Adye, T, Ajinenko, I, Alekseev, G D, Alemany, R, ...
An upper limit for $BR(Z^0\ rightarrow 3g)$ is obtained from a correlation method, which distinguishes statistically between quark and gluon jets by using the difference in their charged particle...
Search for Pair Production of Heavy Objects in 4-Jet Events at $\sqrt{s}=130-136$ GeV (1996)
Adam, W, Adye, T, Agasi, E, Ajinenko, I, Alekseev, G D, Alemany, R, ...
Results are presented of a search for pair production of heavy objects decaying into four hadronic jets, as expected for example from associated or pair production of MSSM Higgs bosons, \hA ~or \HH,...
Abreu, P, Adam, W, Adye, T, Ajinenko, I, Alekseev, G D, Alemany, R, ...
Event shape and charged particle inclusive distributions are measured using 750000 decays of the $Z$ to hadrons from the DELPHI detector at LEP. These precise data allow a decisive confrontation with...
Abreu, P, Adam, W, Adye, T, Agasi, E, Ajinenko, I, Alekseev, G D, ...
Using data accumulated by DELPHI during the November 1995 LEP run at 130~GeV -- 136~GeV, searches have been made for events with jets or leptons in conjunction with missing momentum. The results are...
Abreu, P, Adam, W, Adye, T, Agasi, E, Ajinenko, I, Aleksan, Roy, ...
Search for the lightest chargino at \Sqrt s = 130 and 136 GeV in DELPHI (1996)
Abreu, P, Adam, W, Adye, T, Agasi, E, Ajinenko, I, Aleksan, Roy, ...
A search for pair production of the lightest chargino at $\rs=$ 130.4 and 136.3~GeV has been carried out using the data sample corresponding to the 5.92~${\rm pb}^{-1}$ recorded by the DELPHI...
Abreu, P, Adam, W, Adye, T, Agasi, E, Ajinenko, I, Aleksan, Roy, ...
A search for high mass photon pairs from the processes ${\mathrm e}^+ {\mathrm e}^- \to \ell^+ \ell^- \gamma \gamma\ $, ${\mathrm e}^+ {\mathrm e}^- \to {\mathrm \nu} \overline {\mathrm \nu} \gamma...
Study of rare b decays with the DELPHI detector at LEP (1996)
Adam, W, Adye, T, Agasi, E, Ajinenko, I, Aleksan, Roy, Alekseev, G D, ...
Rare decays of beauty particles were studied in several charmless modes using the data collected with the DELPHI detector at LEP from 1991 to 1994. These decays are mediated by both tree level $b...
Search for anomalous production of single photons at \Sqrt s = 130 and 136 GeV (1996)
Adam, W, Adye, T, Agasi, E, Ajinenko, I, Aleksan, Roy, Alekseev, G D, ...
This letter reports the results of the measurement of single photon production in the reaction $e^+e^- \rightarrow \gamma +$ invisible particles at centre-of-mass energies $\sqrt{s}=$~130 and 136 GeV...
Abreu, P, Adam, W, Adye, T, Agasi, E, Aleksan, Roy, Alekseev, G D, ...
During the last 1995 data acquisition period at LEP, the DELPHI experiment collected an integrated luminosity of $5.9$ pb$^{-1}$ at centre-of-mass energies of 130 GeV and 136 GeV. Radiative leptonic...