P. Weilhammer

Publication List Details

Period

1976 - 2009

Number

780

Co-Authors

99m Tc Imaging Performance of the C-SPRINT Compton Camera 1 (2008)

J. W. Leblanc, X. Bai, N. H. Clinthorne, C. Hua, D. Meier, W. L. Rogers, ...

C-SPRINT is an electronically-collimated imaging system that has been built using pixelated, low-noise, positionsensitive silicon as the first detector, and a sodium iodide scintillation detector...

An Improved Limit on the Muon Neutrino Mass from Pion Decay in Flight (2007)

R. M. Carey, J. P. Miller, O. Rind, B. L. Roberts, H. Brown, G. Bunce, ...

The g-2 Storage Ring is a unique facility for precision measurements that test the standard model. This proposal to improve the muon neutrino mass limit by a factor of 20 (from 170 keV down to 8 keV)...

Novel Geometrical Concept of a High Performance Brain PET Scanner : Principle, Design and Performance Estimates (2007)

Séguinot, J., Braem, A., Chesi, E., Joram, C., Mathot, S., Weilhammer, P., ...

We present the principle, a possible implementation and performance estimates of a novel geometrical concept for a high resolution positron emission tomograph. The concept, which can for example be...

High Precision Axial Coordinate Readout for an Axial 3-D PET Detector Module using a Wave Length Shifter Strip Matrix (2007)

Braem, André, Chesi, Enrico Guido, Joram, C, Séguinot, Jacques, Weilhammer, P, De Leo, R, ...

We describe a novel method to extract the axial coordinate from a matrix of long axially oriented crystals, which is based on wavelength shifting plastic strips. The method allows building compact...

Noise and trigger efficiency characterization of cooled silicon pad detectors (2007)

Marques, A. C, Correia, J. G, Silva, M. R, Rudge, A, Weilhammer, P, ...

Technical progress on silicon pad electron detectors, currently used in emission channelling experiments to study lattice location of radioactive dopants and impurities in single crystals, is...

The ATLAS semiconductor tracker end-cap module (2007)

Abdesselam, A., Adkin, P. J., Allport, P. P., Alonso, J., Andricek, L., Anghinolfi, F., ...

37 pages, 43 figures.-- PACS nrs.: 29.40.Gx; 29.40.Wk.-- ISI Article Identifier: 000247146800010.-- Printed version published on Jun 1, 2007.

A Pair Polarimeter for Linearly Polarized High Energy Photons (2007)

DeJager, C., Wojtsekhowski, B., Tedeschi, D., Vlahovic, B., Abbott, D., Asai, J., ...

A high quality beam of linearly polarized photons of several GeV will become available with the coherent bremsstrahlung technique at JLab. We have developed a polarimeter which requires about two...

A segmented Hybrid Photon Detector with integrated auto-triggering front-end electronics for a PET scanner (2006)

Chesi, Enrico Guido, Braem, André, Joram, C, Mathot, S, Séguinot, Jacques, Weilhammer, P, ...

We describe the design, fabrication and test results of a segmented Hybrid Photon Detector with integrated auto-triggering front-end electronics. Both the photodetector and its VLSI readout...

Design and performance of the ABCD3TA ASIC for readout of silicon strip detectors in the ATLAS semiconductor tracke (2005)

Campabadal, F, Fleta, C, Key, M, Lozano, M, Martinez, C, Pellegrini, G, ...

The ABCD3TA is a 128-channel ASIC with binary architecture for the readout of silicon strip particle detectors in the Semiconductor Tracker of the ATLAS experiment at the Large Hadron Collider (LHC)....

Novel Geometrical Concept of a High Performance Brain PET Scanner: Principle, Design and Performance Estimates (2004)

Séguinot, Jacques, Braem, André, Chesi, Enrico Guido, Joram, C, Mathot, S, Weilhammer, P, ...

We present the principle, a possible implementation and performance estimates of a novel geometrical concept for a high resolution positron emission tomograph. The concept, which can for example be...

Position-sensitive Si pad detectors for electron emission channeling experiments (2004)

Correia, JG, Czermak, A, Jahn, SG, Jalocha, P, Marques, JG, ...

Position-sensitive detector systems, initially developed for the detection of X-rays, have been adapted for their use in electron emission channeling experiments. Each detection system consists of a...

New developments in CVD diamond for detector applications (2004)

Adam,A., Berdermann,E., Bergonzo,P., De Boer,W., Bogani,F., Borchi,E., ...

Chemical Vapor Deposition (CVD) diamond has been discussed extensively as an alternative sensor material for use very close to the interaction region of the LHC and other machines where extreme...

First coincidences in pre-clinical Compton camera prototype for medical imaging (2004)

Studen, A., Burdette, D., Chesi, E., Cindro, V., H. Clinthorne, N., Dulinski, W., ...

Compton collimated imaging may improve the detection of gamma rays emitted by radioisotopes used in single photon emission computed tomography (SPECT). We present a crude prototype consisting of a...

Novel Geometrical Concept of a High Performance Brain PET Scanner : Principle, Design and Performance Estimates (2004)

Séguinot, J., Braem, A., Chesi, E., Joram, C., Mathot, S., Weilhammer, P., ...

We present the principle, a possible implementation and performance estimates of a novel geometrical concept for a high resolution positron emission tomograph. The concept, which can for example be...

b-tagging in DELPHI at LEP (2004)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, T., Alderweireld, T., ...

The standard method used for tagging b-hadrons in the DELPHI experiment at the CERN LEP Collider is discussed in detail. The main ingredient of b-tagging is the impact parameters of tracks, which...

First coincidences in pre-clinical Compton camera prototype for medical imaging (2004)

Studen, A., Burdette, D., Chesi, E., Cindro, V., H. Clinthorne, N., Dulinski, W., ...

Compton collimated imaging may improve the detection of gamma rays emitted by radioisotopes used in single photon emission computed tomography (SPECT). We present a crude prototype consisting of a...

Novel Geometrical Concept of a High Performance Brain PET Scanner : Principle, Design and Performance Estimates (2004)

Séguinot, J., Braem, A., Chesi, E., Joram, C., Mathot, S., Weilhammer, P., ...

We present the principle, a possible implementation and performance estimates of a novel geometrical concept for a high resolution positron emission tomograph. The concept, which can for example be...

b-tagging in DELPHI at LEP (2004)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, T., Alderweireld, T., ...

The standard method used for tagging b-hadrons in the DELPHI experiment at the CERN LEP Collider is discussed in detail. The main ingredient of b-tagging is the impact parameters of tracks, which...

b-tagging in DELPHI at LEP (2004)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, T., Alderweireld, T., ...

The standard method used for tagging b-hadrons in the DELPHI experiment at the CERN LEP Collider is discussed in detail. The main ingredient of b-tagging is the impact parameters of tracks, which...

New developments in CVD diamond for detector applications (2004)

Adam, A., Berdermann, E., Bergonzo, P., De Boer, W., Bogani, F., Borchi, E., ...

Chemical Vapor Deposition (CVD) diamond has been discussed extensively as an alternative sensor material for use very close to the interaction region of the LHC and other machines where extreme...

b-tagging in DELPHI at LEP (2004)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, T., Alderweireld, T., ...

The standard method used for tagging b-hadrons in the DELPHI experiment at the CERN LEP Collider is discussed in detail. The main ingredient of b-tagging is the impact parameters of tracks, which...

b-tagging in DELPHI at LEP (2004)

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, T., Alderweireld, T., ...

The standard method used for tagging b-hadrons in the DELPHI experiment at the CERN LEP Collider is discussed in detail. The main ingredient of b-tagging is the impact parameters of tracks, which...

The development of diamond tracking detectors for the LHC (2003)

Adam,W., Berdermann,E., Bergonzo,P., De Boer,W., Bogani,F., Borchi,E., ...

Chemical vapor deposition diamond has been discussed extensively as an alternate sensor material for use very close to the interaction region of the LHC where extreme radiation conditions exist....

Status ofthe R&D activity on diamond particle detectors (2003)

Adam,W., Berdermann,E., Bergonzo,P., De Boer,W., Bogani,F., Borchi,E., ...

Chemical Vapor Deposited (CVD) polycrystalline diamond has been proposed as a radiation-hard alternative to silicon in the extreme radiation levels occurring close to the interaction region ofthe...

New results on diamond pixel sensors using ATLAS frontend electronics (2003)

Adam,W., Berdermann,E., Bergonzo,P., De Boer,W., Bogani,F., Borchi,E., ...

Diamond is a promising sensor material for future collider experiments due to its radiation hardness. Diamond pixel sensors have been bump bonded to an ATLAS pixel readout chip using PbSn solder...

The development of diamond tracking detectors for the LHC (2003)

Adam, W., Berdermann, E., Bergonzo, P., De Boer, W., Bogani, F., Borchi, E., ...

Chemical vapor deposition diamond has been discussed extensively as an alternate sensor material for use very close to the interaction region of the LHC where extreme radiation conditions exist....

Status ofthe R&D activity on diamond particle detectors (2003)

Adam, W., Berdermann, E., Bergonzo, P., De Boer, W., Bogani, F., ...

Chemical Vapor Deposited (CVD) polycrystalline diamond has been proposed as a radiation-hard alternative to silicon in the extreme radiation levels occurring close to the interaction region ofthe...

New results on diamond pixel sensors using ATLAS frontend electronics (2003)

Adam, W., Berdermann, E., Bergonzo, P., De Boer, W., Bogani, F., Borchi, E., ...

Diamond is a promising sensor material for future collider experiments due to its radiation hardness. Diamond pixel sensors have been bump bonded to an ATLAS pixel readout chip using PbSn solder...

A CVD diamond beam telescope for charged particle tracking (2002)

Adam,W., Berdermann,E., Bergonzo,P., De Boer,W., Bogani,F., Borchi,E., ...

Chemical vapor deposition (CVD) diamond is a radiation-hard sensor material that may be used for charged particle tracking near the interaction region in experiments at high-luminosity colliders. The...

A CVD Diamond Beam Telescope for Charged Particle Tracking (2002)

Adam, W, Berdermann, E, Bergonzo, P, De Boer, W, Bogani, F, Borchi, E, ...

CVD diamond is a radiation hard sensor material which may be used for charged particle tracking near the interaction region in experiments at high luminosity colliders. The goal of the work described...

Performance of irradiated CVD diamond micro-strip sensors (2002)

Adam, W., Berdermann, E., Bergonzo, P., Bertuccio, G., Bogani, F., Borchi, E., ...

CVD diamond detectors are of interest for charged particle detection and tracking due to their high radiation tolerance. In this article we present, for the first time, beam test results from...

A CVD Diamond Beam Telescope for Charged Particle Tracking (2002)

Adam, W, Berdermann, E, Bergonzo, P, De Boer, W, Bogani, F, Borchi, E, ...

CVD diamond is a radiation hard sensor material which may be used for charged particle tracking near the interaction region in experiments at high luminosity colliders. The goal of the work described...

Performance of irradiated CVD diamond micro-strip sensors (2002)

Adam, W., Berdermann, E., Bergonzo, P., Bertuccio, G., Bogani, F., Borchi, E., ...

CVD diamond detectors are of interest for charged particle detection and tracking due to their high radiation tolerance. In this article we present, for the first time, beam test results from...

A CVD Diamond Beam Telescope for Charged Particle Tracking (2002)

Adam, W, Berdermann, E, Bergonzo, P, De Boer, W, Bogani, F, Borchi, E, ...

CVD diamond is a radiation hard sensor material which may be used for charged particle tracking near the interaction region in experiments at high luminosity colliders. The goal of the work described...

Performance of irradiated CVD diamond micro-strip sensors (2002)

Adam, W., Berdermann, E., Bergonzo, P., Bertuccio, G., Bogani, F., Borchi, E., ...

CVD diamond detectors are of interest for charged particle detection and tracking due to their high radiation tolerance. In this article we present, for the first time, beam test results from...

A CVD diamond beam telescope for charged particle tracking (2002)

Adam, W., Berdermann, E., Bergonzo, P., De Boer, W., Bogani, F., Borchi, E., ...

Chemical vapor deposition (CVD) diamond is a radiation-hard sensor material that may be used for charged particle tracking near the interaction region in experiments at high-luminosity colliders. The...

A CVD Diamond Beam Telescope for Charged Particle Tracking (2002)

Adam, W, Berdermann, E, Bergonzo, P, De Boer, W, Bogani, F, Borchi, E, ...

CVD diamond is a radiation hard sensor material which may be used for charged particle tracking near the interaction region in experiments at high luminosity colliders. The goal of the work described...

Performance of irradiated CVD diamond micro-strip sensors (2002)

Adam, W., Berdermann, E., Bergonzo, P., Bertuccio, G., Bogani, F., Borchi, E., ...

CVD diamond detectors are of interest for charged particle detection and tracking due to their high radiation tolerance. In this article we present, for the first time, beam test results from...

A CVD Diamond Beam Telescope for Charged Particle Tracking (2002)

Adam, W, Berdermann, E, Bergonzo, P, De Boer, W, Bogani, F, Borchi, E, ...

CVD diamond is a radiation hard sensor material which may be used for charged particle tracking near the interaction region in experiments at high luminosity colliders. The goal of the work described...

Performance of irradiated CVD diamond micro-strip sensors (2002)

Adam, W., Berdermann, E., Bergonzo, P., Bertuccio, G., Bogani, F., Borchi, E., ...

CVD diamond detectors are of interest for charged particle detection and tracking due to their high radiation tolerance. In this article we present, for the first time, beam test results from...

Developments for radiation hard silicon detectors by defect engineering - results by the CERN RD48 (ROSE) Collaboration (2001)

Lindstrom, G., Ahmed, M., Albergo, S., Allport, P., Anderson, D., Andricek, L., ...

This report summarises the final results obtained by the RD48 collaboration. The emphasis is on the more practical aspects directly relevant for LHC applications. The report is based on the...

Radiation hard silicon detectors - developments by the RD48 (ROSE)collaboration (2001)

Lindstrom, G., Ahmed, M., Albergo, S., Allport, P., Anderson, D., Andricek, L., ...

The RD48 (ROSE) collaboration has succeeded to develop radiation hard silicon detectors. capable to withstand the harsh hadron fluences in the tracking areas of LHC experiments. In order to reach...

Pulse height distribution and radiation tolerance of CVD diamond detectors (2000)

Adam, W., Berdermann, E., Bergonzo, P., Bertuccio, G., Bogani, F., Borchi, E., ...

The paper reviews measurements of the radiation tolerance of CVD diamond for irradiation with 24 GeV/c protons, 300 MeV/c pions and 1 MeV neutrons. For proton and neutron irradiation, the measured...

Pulse height distribution and radiation tolerance of CVD diamond detectors (2000)

Adam, W., Berdermann, E., Bergonzo, P., Bertuccio, G., Bogani, F., Borchi, E., ...

The paper reviews measurements of the radiation tolerance of CVD diamond for irradiation with 24 GeV/c protons, 300 MeV/c pions and 1 MeV neutrons. For proton and neutron irradiation, the measured...

CVD diamond detectors for ionizing radiation (1999)

Friedl, M., Adam, W., Bauer, C., Berfermann, E., Bergonzo, P., Bogani, F., ...

In future HEP accelerators, such as the LHC (CERN), detectors and electronics in the vertex region of the experiments will suffer from extreme radiation. Thus radiation hardness is required for both...

Proton irradiation of CVD diamond detectors for high-luminosity experiments at the LHC (1999)

Meier, D., Adam, W., Bauer, C., Berdermann, E., Bergonzo, P., Bogani, F., ...

CVD diamond shows promising properties for use as a position sensitive detector for experiments in the highest radiation areas at the Large Hadron Collider. In order to study the radiation hardn ess...

Review of the development of diamond radiation sensors (1999)

Adam, W., Bauer, C., Berdermann, E., Bergonzo, P., Bogani, F., Borchi, E., ...

Diamond radiation sensors produced by chemical vapour deposition are studied for the application as tracking detectors in high luminosity experiments. Sensors with a charge collection distance up to...

The first bump-bonded pixel detectors on CVD diamond (1999)

Adam, W., Bauer, C., Berdermann, E., Bergonzo, P., Bogani, F., Borchi, E., ...

Diamond is a nearly ideal material for detecting ionising radiation. Its outstanding radiation hardness, fast charge collection and low leakage current allow it to be used in high radiation...

CVD diamond detectors for ionizing radiation (1999)

Friedl, M., Adam, W., Bauer, C., Berfermann, E., Bergonzo, P., Bogani, F., ...

In future HEP accelerators, such as the LHC (CERN), detectors and electronics in the vertex region of the experiments will suffer from extreme radiation. Thus radiation hardness is required for both...

Proton irradiation of CVD diamond detectors for high-luminosity experiments at the LHC (1999)

Meier, D., Adam, W., Bauer, C., Berdermann, E., Bergonzo, P., Bogani, F., ...

CVD diamond shows promising properties for use as a position sensitive detector for experiments in the highest radiation areas at the Large Hadron Collider. In order to study the radiation hardn ess...

Review of the development of diamond radiation sensors (1999)

Adam, W., Bauer, C., Berdermann, E., Bergonzo, P., Bogani, F., Borchi, E., ...

Diamond radiation sensors produced by chemical vapour deposition are studied for the application as tracking detectors in high luminosity experiments. Sensors with a charge collection distance up to...

The first bump-bonded pixel detectors on CVD diamond (1999)

Adam, W., Bauer, C., Berdermann, E., Bergonzo, P., Bogani, F., Borchi, E., ...

Diamond is a nearly ideal material for detecting ionising radiation. Its outstanding radiation hardness, fast charge collection and low leakage current allow it to be used in high radiation...

Proton irradiation of CVD diamond detectors for high-luminosity experiments at the LHC (1999)

Meier, D., Adam, W., Bauer, C., Berdermann, E., Bergonzo, P., Bogani, F., ...

CVD diamond shows promising properties for use as a position sensitive detector for experiments in the highest radiation areas at the Large Hadron Collider. In order to study the radiation hardn ess...

Proton irradiation of CVD diamond detectors for high-luminosity experiments at the LHC (1999)

Meier, D., Adam, W., Bauer, C., Berdermann, E., Bergonzo, P., Bogani, F., ...

CVD diamond shows promising properties for use as a position sensitive detector for experiments in the highest radiation areas at the Large Hadron Collider. In order to study the radiation hardn ess...

Proton irradiation of CVD diamond detectors for high-luminosity experiments at the LHC (1999)

Meier, D., Adam, W., Bauer, C., Berdermann, E., Bergonzo, P., Bogani, F., ...

CVD diamond shows promising properties for use as a position sensitive detector for experiments in the highest radiation areas at the Large Hadron Collider. In order to study the radiation hardn ess...

The Developement Of The Cafe-P/cafe-M Bipolar Chips For The Atlas Semiconductor Tracker (1999)

Dubbs Email Dubbs, D. Dorfan, A. Grillo, E. Spencer, A. Seiden, ...

A bipolar chip has been developed to provide the frontend functions of the binary readout architecture used for the silicon strip detectors in the ATLAS Semiconductor Tracker (SCT). This chip...

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....

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....

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....

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....

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....

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...

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...

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,...

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., ...

Abstract: 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...

Search for Stable Heavy Charged Particles in $e^+ e^-$ Collisions at $\sqrt{s}$ = 130-136, 161 and 172 GeV (1997)

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...

Measurement of Correlations between Pions from Different W's in $e^+ e^- \rightarrow W^+ W^-$ Events (1997)

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...

Measurement and interpretation of the W-pair cross-section in $e^+ e^-$ interactions at 161 GeV (1997)

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 $9.93 {\mathrm{~pb^{-1}}}$,...

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}...

A study of the reaction $e^+ e^- \rightarrow \mu^+\mu^-\gamma_{ISR}$ at LEP and search for new physics at annihilation energies near 80 GeV (1997)

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...

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...

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...

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,...

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., ...

Abstract: 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...

Search for Stable Heavy Charged Particles in $e^+ e^-$ Collisions at $\sqrt{s}$ = 130-136, 161 and 172 GeV (1997)

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...

Measurement of Correlations between Pions from Different W's in $e^+ e^- \rightarrow W^+ W^-$ Events (1997)

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...

Measurement and interpretation of the W-pair cross-section in $e^+ e^-$ interactions at 161 GeV (1997)

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 $9.93 {\mathrm{~pb^{-1}}}$,...

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}...

A study of the reaction $e^+ e^- \rightarrow \mu^+\mu^-\gamma_{ISR}$ at LEP and search for new physics at annihilation energies near 80 GeV (1997)

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...

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...

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...

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,...

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 stable heavy charged particles in $e^+ e^-$ collisions at $\sqrt{s}$ = 130-136, 161 and 172 GeV (1997)

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...

Measurement of Correlations between Pions from Different W's in $e^+ e^- \rightarrow W^+ W^-$ Events (1997)

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...

Measurement and interpretation of the W-pair cross-section in $e^+ e^-$ interactions at 161 GeV (1997)

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 $9.93 {\mathrm{~pb^{-1}}}$,...

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}...

A study of the reaction $e^+ e^- \rightarrow \mu^+\mu^-\gamma_{ISR}$ at LEP and search for new physics at annihilation energies near 80 GeV (1997)

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...

A study of the reaction $e^+ e^- \rightarrow \mu^+\mu^-\gamma_{ISR}$ at LEP and search for new physics at annihilation energies near 80 GeV (1997)

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...

Measurement of Correlations between Pions from Different W's in $e^+ e^- \rightarrow W^+ W^-$ Events (1997)

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...

Measurement and interpretation of the W-pair cross-section in $e^+ e^-$ interactions at 161 GeV (1997)

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 $9.93 {\mathrm{~pb^{-1}}}$,...

Search for stable heavy charged particles in $e^+ e^-$ collisions at $\sqrt{s}$ = 130-136, 161 and 172 GeV (1997)

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 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}...

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...

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...

A study of the reaction $e^+ e^- \rightarrow \mu^+\mu^-\gamma_{ISR}$ at LEP and search for new physics at annihilation energies near 80 GeV (1997)

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...

Measurement of Correlations between Pions from Different W's in $e^+ e^- \rightarrow W^+ W^-$ Events (1997)

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...

Measurement and interpretation of the W-pair cross-section in $e^+ e^-$ interactions at 161 GeV (1997)

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 $9.93 {\mathrm{~pb^{-1}}}$,...

Search for stable heavy charged particles in $e^+ e^-$ collisions at $\sqrt{s}$ = 130-136, 161 and 172 GeV (1997)

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 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}...

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...

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 the partial decay width R$_{b}^{0}= \Gamma_{b\overline{b}}/\Gamma_{had}$ of the Z with the DELPHI detector at Lep (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...

The partial decay width of the Z to b\overline{ b} quark pairs has been measured by the DELPHI detector at LEP. B-hadrons, containing b-quarks, were tagged by several methods using tracks with large...

Search for promptly produced heavy quarkonium states in hadronic Z decays (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Azhinenko, I., Aleksan, R., ...

A search has been made for direct production of heavy quarkonium states in more than 3 million hadronic Z^{0} decays in the 1991-1994 DELPHI data. Prompt J/\psi, \psi(2S) and \Upsilon candidates have...

Search for the lightest chargino at $\sqrt{s}$ = 130 and 136 GeV (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Azhinenko, I., Aleksan, R., ...

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...

Search for exclusive decays of the $\Lambda_{b}$ baryon and measurement of its mass (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...

A search for fully reconstructed \lb beauty baryons is performed using about 3 million Z decays collected with the DELPHI detector at LEP. The analysis relies on the combined use of the accurate...

Search for pair production of heavy objects in 4-jets 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,...

Search for neutralinos scalar leptons and scalar quarks in e$^+$e$^-$ interactions at $\sqrt{s}$ = 130 GeV and 136 GeV (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Alekseev, G D., ...

Abstract: 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...

Search for high mass $\gamma\gamma$ resonances in $e^+e^- \rightarrow l^{+}l^{-}\gamma\gamma\nu\overline{\nu}\gamma\gamma$ and q$\overline{q}\gamma\gamma$ at LEP I (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...

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...

Search for anomalous production of single photons at $\sqrt{s}$ = 130 and 136 GeV (1996)

Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., 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...

Production of $\Sigma^{0}$ and $\Omega^{-}$ in Z decays (1996)

Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., Alekseev, G D., ...

Reconstructed \lam\ baryon decays and photon conversions in DELPHI are used to measure the \sig\ production rate from hadronic Z^0 decays at LEP. The number of \sig\ decays per hadronic Z decay is...

Performance of the DELPHI detector (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...

DELPHI (DEtector with Lepton, Photon and Hadron Identification) is a detector for e^+e^- physics, designed to provide high granularity over a 4\pi solid angle, allowing an effective particle...

Measurement of the B$^{0}_{d}$ oscillation frequency using kaons leptons and jet charge (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...

A measurement of the mass difference, \Delta m_d, between the two physical \mbox{B}^0_d states has been obtained from the analysis of the impact parameter distribution of a lepton emitted at large...

Measurement of inclusive $\pi^{0}$ production in hadronic Z$^{0}$ decays (1996)

Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., Alekseev, G D., ...

An analysis is presented of inclusive \pi^0 production in Z^0 decays measured with the DELPHI detector. At low energies, \pi^0 decays are reconstructed by \linebreak using pairs of converted photons...

Mean lifetime of the b$^{0}_{s}$ meson (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Aleksan, R., Alekseev, G D., ...

This paper presents an update of the measurement of the mean lifetime of the B^0_s meson. Combining D_s - \ell, D_s-h, \phi - \ell and inclusive D_s final states from the 3.2 million hadronic \Zz...

Kaon interference in the hadronic decays of the Z$^{0}$ (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Aleksan, R., Alekseev, G D., ...

The first measurement of like-sign charged kaon correlations in hadronic decays of the Z$^0$ is presented, based on data collected by the DELPHI detector. The charged kaons are identified by means of...

First study of the interference between initial and final state radiation at the Z resonance (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...

Abstract: The interference between initial and final state radiation in the process \eemm\ at $\sqs \approx \MZ$ has been studied by measuring the forward-backward asymmetry as a function of the...

First measurement of f'$_{2}$(1525) production in Z$^{0}$ hadronic decays (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...

Abstract: \newcommand{\zz}{Z^{0}} Inclusive production of the f'_{2}(1525) in hadronic \zz\ decays has been studied in data collected by the DELPHI detector at LEP. The Ring Imaging Cherenkov...

Energy dependence of the differences between the quark and gluon jet fragmentation (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...

Three jet events arising from decays of the Z boson, collected by the DELPHI detector, were used to measure differences in quark and gluon fragmentation. Gluon jets were anti-tagged by identifying b...

Determination of the average lifetime of b-baryons (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...

Abstract: The average lifetime of b-baryons has been studied using 3 \times 10^6 hadronic Z^0 decays collected by the DELPHI detector at LEP. Three methods have been used, based on the measurement of...

Charged particle multiplicity in $e^+e^-$ interactions at $\sqrt{s}$ = 130 GeV (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...

Abstract: From the data collected by DELPHI at LEP in autumn 1995, the multiplicity of charged particles at a hadronic energy of 130 GeV has been measured to be n_{ch} = 23.84 \pm 0.51 (stat) \pm...

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 $BR(Z^0\rightarrow3g)$ is obtained from a correlation method, which distinguishes statistically between quark and gluon jets by using the difference in their charged particle...

A precise measurement of the $\tau$ lepton lifetime (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...

The tau lepton lifetime has been measured using three different methods with the DELPHI detector. Two measurements of one-prong decays are combined, accounting for correlations, giving a result of...

Measurement of the partial decay width R$_{b}^{0}= \Gamma_{b\overline{b}}/\Gamma_{had}$ of the Z with the DELPHI detector at Lep (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...

The partial decay width of the Z to b\overline{ b} quark pairs has been measured by the DELPHI detector at LEP. B-hadrons, containing b-quarks, were tagged by several methods using tracks with large...

Search for promptly produced heavy quarkonium states in hadronic Z decays (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Azhinenko, I., Aleksan, R., ...

A search has been made for direct production of heavy quarkonium states in more than 3 million hadronic Z^{0} decays in the 1991-1994 DELPHI data. Prompt J/\psi, \psi(2S) and \Upsilon candidates have...

Search for the lightest chargino at $\sqrt{s}$ = 130 and 136 GeV (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Azhinenko, I., Aleksan, R., ...

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...

Search for exclusive decays of the $\Lambda_{b}$ baryon and measurement of its mass (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...

A search for fully reconstructed \lb beauty baryons is performed using about 3 million Z decays collected with the DELPHI detector at LEP. The analysis relies on the combined use of the accurate...

Search for pair production of heavy objects in 4-jets 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,...

Search for neutralinos scalar leptons and scalar quarks in e$^+$e$^-$ interactions at $\sqrt{s}$ = 130 GeV and 136 GeV (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Alekseev, G D., ...

Abstract: 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...

Search for high mass $\gamma\gamma$ resonances in $e^+e^- \rightarrow l^{+}l^{-}\gamma\gamma\nu\overline{\nu}\gamma\gamma$ and q$\overline{q}\gamma\gamma$ at LEP I (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...

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...

Search for anomalous production of single photons at $\sqrt{s}$ = 130 and 136 GeV (1996)

Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., 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...

Production of $\Sigma^{0}$ and $\Omega^{-}$ in Z decays (1996)

Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., Alekseev, G D., ...

Reconstructed \lam\ baryon decays and photon conversions in DELPHI are used to measure the \sig\ production rate from hadronic Z^0 decays at LEP. The number of \sig\ decays per hadronic Z decay is...

Performance of the DELPHI detector (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...

DELPHI (DEtector with Lepton, Photon and Hadron Identification) is a detector for e^+e^- physics, designed to provide high granularity over a 4\pi solid angle, allowing an effective particle...

Measurement of the B$^{0}_{d}$ oscillation frequency using kaons leptons and jet charge (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...

A measurement of the mass difference, \Delta m_d, between the two physical \mbox{B}^0_d states has been obtained from the analysis of the impact parameter distribution of a lepton emitted at large...

Measurement of inclusive $\pi^{0}$ production in hadronic Z$^{0}$ decays (1996)

Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., Alekseev, G D., ...

An analysis is presented of inclusive \pi^0 production in Z^0 decays measured with the DELPHI detector. At low energies, \pi^0 decays are reconstructed by \linebreak using pairs of converted photons...

Mean lifetime of the b$^{0}_{s}$ meson (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Aleksan, R., Alekseev, G D., ...

This paper presents an update of the measurement of the mean lifetime of the B^0_s meson. Combining D_s - \ell, D_s-h, \phi - \ell and inclusive D_s final states from the 3.2 million hadronic \Zz...

Kaon interference in the hadronic decays of the Z$^{0}$ (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Aleksan, R., Alekseev, G D., ...

The first measurement of like-sign charged kaon correlations in hadronic decays of the Z$^0$ is presented, based on data collected by the DELPHI detector. The charged kaons are identified by means of...

First study of the interference between initial and final state radiation at the Z resonance (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...

Abstract: The interference between initial and final state radiation in the process \eemm\ at $\sqs \approx \MZ$ has been studied by measuring the forward-backward asymmetry as a function of the...

First measurement of f'$_{2}$(1525) production in Z$^{0}$ hadronic decays (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...

Abstract: \newcommand{\zz}{Z^{0}} Inclusive production of the f'_{2}(1525) in hadronic \zz\ decays has been studied in data collected by the DELPHI detector at LEP. The Ring Imaging Cherenkov...

Energy dependence of the differences between the quark and gluon jet fragmentation (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...

Three jet events arising from decays of the Z boson, collected by the DELPHI detector, were used to measure differences in quark and gluon fragmentation. Gluon jets were anti-tagged by identifying b...

Determination of the average lifetime of b-baryons (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...

Abstract: The average lifetime of b-baryons has been studied using 3 \times 10^6 hadronic Z^0 decays collected by the DELPHI detector at LEP. Three methods have been used, based on the measurement of...

Charged particle multiplicity in $e^+e^-$ interactions at $\sqrt{s}$ = 130 GeV (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...

Abstract: From the data collected by DELPHI at LEP in autumn 1995, the multiplicity of charged particles at a hadronic energy of 130 GeV has been measured to be n_{ch} = 23.84 \pm 0.51 (stat) \pm...

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 $BR(Z^0\rightarrow3g)$ is obtained from a correlation method, which distinguishes statistically between quark and gluon jets by using the difference in their charged particle...

A precise measurement of the $\tau$ lepton lifetime (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...

The tau lepton lifetime has been measured using three different methods with the DELPHI detector. Two measurements of one-prong decays are combined, accounting for correlations, giving a result of...

Measurement of the partial decay width R$_{b}^{0}= \Gamma_{b\overline{b}}/\Gamma_{had}$ of the Z with the DELPHI detector at Lep (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...

The partial decay width of the Z to b\overline{ b} quark pairs has been measured by the DELPHI detector at LEP. B-hadrons, containing b-quarks, were tagged by several methods using tracks with large...

Search for promptly produced heavy quarkonium states in hadronic Z decays (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Azhinenko, I., Aleksan, R., ...

A search has been made for direct production of heavy quarkonium states in more than 3 million hadronic Z^{0} decays in the 1991-1994 DELPHI data. Prompt J/\psi, \psi(2S) and \Upsilon candidates have...

Search for exclusive decays of the $\Lambda_{b}$ baryon and measurement of its mass (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...

A search for fully reconstructed \lb beauty baryons is performed using about 3 million Z decays collected with the DELPHI detector at LEP. The analysis relies on the combined use of the accurate...

Search for pair production of heavy objects in 4-jets 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,...

Search for neutralinos scalar leptons and scalar quarks in e$^+$e$^-$ interactions at $\sqrt{s}$ = 130 GeV and 136 GeV (1996)

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...

Search for high mass $\gamma\gamma$ resonances in $e^+e^- \rightarrow l^{+}l^{-}\gamma\gamma\nu\overline{\nu}\gamma\gamma$ and q$\overline{q}\gamma\gamma$ at LEP I (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...

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...

Search for anomalous production of single photons at $\sqrt{s}$ = 130 and 136 GeV (1996)

Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., 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...

Production of $\Sigma^{0}$ and $\Omega^{-}$ in Z decays (1996)

Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., Alekseev, G D., ...

Reconstructed \lam\ baryon decays and photon conversions in DELPHI are used to measure the \sig\ production rate from hadronic Z^0 decays at LEP. The number of \sig\ decays per hadronic Z decay is...

Performance of the DELPHI detector (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...

DELPHI (DEtector with Lepton, Photon and Hadron Identification) is a detector for e^+e^- physics, designed to provide high granularity over a 4\pi solid angle, allowing an effective particle...

Measurement of the B$^{0}_{d}$ oscillation frequency using kaons leptons and jet charge (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...

A measurement of the mass difference, \Delta m_d, between the two physical \mbox{B}^0_d states has been obtained from the analysis of the impact parameter distribution of a lepton emitted at large...

Measurement of inclusive $\pi^{0}$ production in hadronic Z$^{0}$ decays (1996)

Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., Alekseev, G D., ...

An analysis is presented of inclusive \pi^0 production in Z^0 decays measured with the DELPHI detector. At low energies, \pi^0 decays are reconstructed by \linebreak using pairs of converted photons...

Mean lifetime of the b$^{0}_{s}$ meson (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Aleksan, R., Alekseev, G D., ...

This paper presents an update of the measurement of the mean lifetime of the B^0_s meson. Combining D_s - \ell, D_s-h, \phi - \ell and inclusive D_s final states from the 3.2 million hadronic \Zz...

Kaon interference in the hadronic decays of the Z$^{0}$ (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Aleksan, R., Alekseev, G D., ...

The first measurement of like-sign charged kaon correlations in hadronic decays of the Z$^0$ is presented, based on data collected by the DELPHI detector. The charged kaons are identified by means of...

First study of the interference between initial and final state radiation at the Z resonance (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...

The interference between initial and final state radiation in the process \eemm\ at $\sqs \approx \MZ$ has been studied by measuring the forward-backward asymmetry as a function of the acoplanarity...

First measurement of f'$_{2}$(1525) production in Z$^{0}$ hadronic decays (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...

Inclusive production of the f'_{2}(1525) in hadronic Z^{0} decays has been studied in data collected by the DELPHI detector at LEP. The Ring Imaging Cherenkov detectors were important tools in the...

Energy dependence of the differences between the quark and gluon jet fragmentation (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...

Three jet events arising from decays of the Z boson, collected by the DELPHI detector, were used to measure differences in quark and gluon fragmentation. Gluon jets were anti-tagged by identifying b...

Determination of the average lifetime of b-baryons (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...

The average lifetime of b-baryons has been studied using 3 \times 10^6 hadronic Z^0 decays collected by the DELPHI detector at LEP. Three methods have been used, based on the measurement of different...

Charged particle multiplicity in $e^+e^-$ interactions at $\sqrt{s}$ = 130 GeV (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...

From the data collected by DELPHI at LEP in autumn 1995, the multiplicity of charged particles at a hadronic energy of 130 GeV has been measured to be n_{ch} = 23.84 \pm 0.51 (stat) \pm 0.52 (syst)....

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 $BR(Z^0\rightarrow3g)$ is obtained from a correlation method, which distinguishes statistically between quark and gluon jets by using the difference in their charged particle...

A precise measurement of the $\tau$ lepton lifetime (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...

The tau lepton lifetime has been measured using three different methods with the DELPHI detector. Two measurements of one-prong decays are combined, accounting for correlations, giving a result of...

A precise measurement of the $\tau$ lepton lifetime (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...

The tau lepton lifetime has been measured using three different methods with the DELPHI detector. Two measurements of one-prong decays are combined, accounting for correlations, giving a result of...

Search for exclusive decays of the $\Lambda_{b}$ baryon and measurement of its mass (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...

A search for fully reconstructed \lb beauty baryons is performed using about 3 million Z decays collected with the DELPHI detector at LEP. The analysis relies on the combined use of the accurate...

Measurement of inclusive $\pi^{0}$ production in hadronic Z$^{0}$ decays (1996)

Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., Alekseev, G D., ...

An analysis is presented of inclusive \pi^0 production in Z^0 decays measured with the DELPHI detector. At low energies, \pi^0 decays are reconstructed by \linebreak using pairs of converted photons...

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 $BR(Z^0\rightarrow3g)$ is obtained from a correlation method, which distinguishes statistically between quark and gluon jets by using the difference in their charged particle...

Charged particle multiplicity in $e^+e^-$ interactions at $\sqrt{s}$ = 130 GeV (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...

From the data collected by DELPHI at LEP in autumn 1995, the multiplicity of charged particles at a hadronic energy of 130 GeV has been measured to be n_{ch} = 23.84 \pm 0.51 (stat) \pm 0.52 (syst)....

Determination of the average lifetime of b-baryons (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...

The average lifetime of b-baryons has been studied using 3 \times 10^6 hadronic Z^0 decays collected by the DELPHI detector at LEP. Three methods have been used, based on the measurement of different...

Energy dependence of the differences between the quark and gluon jet fragmentation (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...

Three jet events arising from decays of the Z boson, collected by the DELPHI detector, were used to measure differences in quark and gluon fragmentation. Gluon jets were anti-tagged by identifying b...

First measurement of f'$_{2}$(1525) production in Z$^{0}$ hadronic decays (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...

Inclusive production of the f'_{2}(1525) in hadronic Z^{0} decays has been studied in data collected by the DELPHI detector at LEP. The Ring Imaging Cherenkov detectors were important tools in the...

First study of the interference between initial and final state radiation at the Z resonance (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...

The interference between initial and final state radiation in the process \eemm\ at $\sqs \approx \MZ$ has been studied by measuring the forward-backward asymmetry as a function of the acoplanarity...

Kaon interference in the hadronic decays of the Z$^{0}$ (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Aleksan, R., Alekseev, G D., ...

The first measurement of like-sign charged kaon correlations in hadronic decays of the Z$^0$ is presented, based on data collected by the DELPHI detector. The charged kaons are identified by means of...

Mean lifetime of the b$^{0}_{s}$ meson (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Aleksan, R., Alekseev, G D., ...

This paper presents an update of the measurement of the mean lifetime of the B^0_s meson. Combining D_s - \ell, D_s-h, \phi - \ell and inclusive D_s final states from the 3.2 million hadronic \Zz...

Measurement of the B$^{0}_{d}$ oscillation frequency using kaons leptons and jet charge (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...

A measurement of the mass difference, \Delta m_d, between the two physical \mbox{B}^0_d states has been obtained from the analysis of the impact parameter distribution of a lepton emitted at large...

Performance of the DELPHI detector (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...

DELPHI (DEtector with Lepton, Photon and Hadron Identification) is a detector for e^+e^- physics, designed to provide high granularity over a 4\pi solid angle, allowing an effective particle...

Search for anomalous production of single photons at $\sqrt{s}$ = 130 and 136 GeV (1996)

Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., 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...

Search for high mass $\gamma\gamma$ resonances in $e^+e^- \rightarrow l^{+}l^{-}\gamma\gamma\nu\overline{\nu}\gamma\gamma$ and q$\overline{q}\gamma\gamma$ at LEP I (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...

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...

Search for neutralinos scalar leptons and scalar quarks in e$^+$e$^-$ interactions at $\sqrt{s}$ = 130 GeV and 136 GeV (1996)

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...

Search for pair production of heavy objects in 4-jets 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,...

Production of $\Sigma^{0}$ and $\Omega^{-}$ in Z decays (1996)

Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., Alekseev, G D., ...

Reconstructed \lam\ baryon decays and photon conversions in DELPHI are used to measure the \sig\ production rate from hadronic Z^0 decays at LEP. The number of \sig\ decays per hadronic Z decay is...

Measurement of the partial decay width R$_{b}^{0}= \Gamma_{b\overline{b}}/\Gamma_{had}$ of the Z with the DELPHI detector at Lep (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...

The partial decay width of the Z to b\overline{ b} quark pairs has been measured by the DELPHI detector at LEP. B-hadrons, containing b-quarks, were tagged by several methods using tracks with large...

Search for promptly produced heavy quarkonium states in hadronic Z decays (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Azhinenko, I., Aleksan, R., ...

A search has been made for direct production of heavy quarkonium states in more than 3 million hadronic Z^{0} decays in the 1991-1994 DELPHI data. Prompt J/\psi, \psi(2S) and \Upsilon candidates have...

A precise measurement of the $\tau$ lepton lifetime (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...

The tau lepton lifetime has been measured using three different methods with the DELPHI detector. Two measurements of one-prong decays are combined, accounting for correlations, giving a result of...

Search for exclusive decays of the $\Lambda_{b}$ baryon and measurement of its mass (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...

A search for fully reconstructed \lb beauty baryons is performed using about 3 million Z decays collected with the DELPHI detector at LEP. The analysis relies on the combined use of the accurate...

Measurement of inclusive $\pi^{0}$ production in hadronic Z$^{0}$ decays (1996)

Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., Alekseev, G D., ...

An analysis is presented of inclusive \pi^0 production in Z^0 decays measured with the DELPHI detector. At low energies, \pi^0 decays are reconstructed by \linebreak using pairs of converted photons...

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 $BR(Z^0\rightarrow3g)$ is obtained from a correlation method, which distinguishes statistically between quark and gluon jets by using the difference in their charged particle...

Charged particle multiplicity in $e^+e^-$ interactions at $\sqrt{s}$ = 130 GeV (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...

From the data collected by DELPHI at LEP in autumn 1995, the multiplicity of charged particles at a hadronic energy of 130 GeV has been measured to be n_{ch} = 23.84 \pm 0.51 (stat) \pm 0.52 (syst)....

Determination of the average lifetime of b-baryons (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...

The average lifetime of b-baryons has been studied using 3 \times 10^6 hadronic Z^0 decays collected by the DELPHI detector at LEP. Three methods have been used, based on the measurement of different...

Energy dependence of the differences between the quark and gluon jet fragmentation (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...

Three jet events arising from decays of the Z boson, collected by the DELPHI detector, were used to measure differences in quark and gluon fragmentation. Gluon jets were anti-tagged by identifying b...

First measurement of f'$_{2}$(1525) production in Z$^{0}$ hadronic decays (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...

Inclusive production of the f'_{2}(1525) in hadronic Z^{0} decays has been studied in data collected by the DELPHI detector at LEP. The Ring Imaging Cherenkov detectors were important tools in the...

First study of the interference between initial and final state radiation at the Z resonance (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...

The interference between initial and final state radiation in the process \eemm\ at $\sqs \approx \MZ$ has been studied by measuring the forward-backward asymmetry as a function of the acoplanarity...

Kaon interference in the hadronic decays of the Z$^{0}$ (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Aleksan, R., Alekseev, G D., ...

The first measurement of like-sign charged kaon correlations in hadronic decays of the Z$^0$ is presented, based on data collected by the DELPHI detector. The charged kaons are identified by means of...

Mean lifetime of the b$^{0}_{s}$ meson (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Aleksan, R., Alekseev, G D., ...

This paper presents an update of the measurement of the mean lifetime of the B^0_s meson. Combining D_s - \ell, D_s-h, \phi - \ell and inclusive D_s final states from the 3.2 million hadronic \Zz...

Measurement of the B$^{0}_{d}$ oscillation frequency using kaons leptons and jet charge (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...

A measurement of the mass difference, \Delta m_d, between the two physical \mbox{B}^0_d states has been obtained from the analysis of the impact parameter distribution of a lepton emitted at large...

Performance of the DELPHI detector (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...

DELPHI (DEtector with Lepton, Photon and Hadron Identification) is a detector for e^+e^- physics, designed to provide high granularity over a 4\pi solid angle, allowing an effective particle...

Search for anomalous production of single photons at $\sqrt{s}$ = 130 and 136 GeV (1996)

Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., 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...

Search for high mass $\gamma\gamma$ resonances in $e^+e^- \rightarrow l^{+}l^{-}\gamma\gamma\nu\overline{\nu}\gamma\gamma$ and q$\overline{q}\gamma\gamma$ at LEP I (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...

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...

Search for neutralinos scalar leptons and scalar quarks in e$^+$e$^-$ interactions at $\sqrt{s}$ = 130 GeV and 136 GeV (1996)

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...

Search for pair production of heavy objects in 4-jets 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,...

Production of $\Sigma^{0}$ and $\Omega^{-}$ in Z decays (1996)

Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., Alekseev, G D., ...

Reconstructed \lam\ baryon decays and photon conversions in DELPHI are used to measure the \sig\ production rate from hadronic Z^0 decays at LEP. The number of \sig\ decays per hadronic Z decay is...

Measurement of the partial decay width R$_{b}^{0}= \Gamma_{b\overline{b}}/\Gamma_{had}$ of the Z with the DELPHI detector at Lep (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...

The partial decay width of the Z to b\overline{ b} quark pairs has been measured by the DELPHI detector at LEP. B-hadrons, containing b-quarks, were tagged by several methods using tracks with large...

Search for promptly produced heavy quarkonium states in hadronic Z decays (1996)

Abreu, P., Adam, W., Adye, T., Agasi, E., Azhinenko, I., Aleksan, R., ...

A search has been made for direct production of heavy quarkonium states in more than 3 million hadronic Z^{0} decays in the 1991-1994 DELPHI data. Prompt J/\psi, \psi(2S) and \Upsilon candidates have...

A measurement of the $\tau$ leptonic branching fractions (1995)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...

A sample of 25000 \Z\rightarrow\tt events collected by the DELPHI experiment at LEP in 1991 and 1992 is used to measure the leptonic branching fractions of the \tau lepton. The results are B(\TEL) =...

Upper limits on the branching ratios $\tau\rightarrow \mu\gamma$ and $\tau\rightarrow$ e$\gamma$ (1995)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...

The DELPHI collaboration has searched for lepton flavour violating decays \tau \rightarrow \mu \gamma and \tau \rightarrow e \gamma using a data sample of about 70~pb^{-1} of integrated luminosity...

Measurement of $\Delta^{++}$(1232) production in hadronic Z decays (1995)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...

A measurement of the \Delta^{++}(1232) inclusive production in hadronic decays of the Z at LEP is presented, based on 1.3 million hadronic events collected~ by the DELPHI~ detector in the 1994 LEP...

A measurement of B$^{+}$ and B$^{0}$ lifetimes using $\overline{D}$l$^{+}$ events (1995)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...

A measurement of B meson lifetimes is presented using data collected from 1991 to 1993 by the DELPHI detector at the LEP collider. Samples of events with a D meson and a lepton in the same jet are...

A measurement of the $\tau$ leptonic branching fractions (1995)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...

A sample of 25000 \Z\rightarrow\tt events collected by the DELPHI experiment at LEP in 1991 and 1992 is used to measure the leptonic branching fractions of the \tau lepton. The results are B(\TEL) =...

Upper limits on the branching ratios $\tau\rightarrow \mu\gamma$ and $\tau\rightarrow$ e$\gamma$ (1995)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...

The DELPHI collaboration has searched for lepton flavour violating decays \tau \rightarrow \mu \gamma and \tau \rightarrow e \gamma using a data sample of about 70~pb^{-1} of integrated luminosity...

Measurement of $\Delta^{++}$(1232) production in hadronic Z decays (1995)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...

A measurement of the \Delta^{++}(1232) inclusive production in hadronic decays of the Z at LEP is presented, based on 1.3 million hadronic events collected~ by the DELPHI~ detector in the 1994 LEP...

A measurement of B$^{+}$ and B$^{0}$ lifetimes using $\overline{D}$l$^{+}$ events (1995)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...

A measurement of B meson lifetimes is presented using data collected from 1991 to 1993 by the DELPHI detector at the LEP collider. Samples of events with a D meson and a lepton in the same jet are...

A measurement of the $\tau$ leptonic branching fractions (1995)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...

A sample of 25000 \Z\rightarrow\tt events collected by the DELPHI experiment at LEP in 1991 and 1992 is used to measure the leptonic branching fractions of the \tau lepton. The results are B(\TEL) =...

Upper limits on the branching ratios $\tau\rightarrow \mu\gamma$ and $\tau\rightarrow$ e$\gamma$ (1995)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...

The DELPHI collaboration has searched for lepton flavour violating decays \tau \rightarrow \mu \gamma and \tau \rightarrow e \gamma using a data sample of about 70~pb^{-1} of integrated luminosity...

Measurement of $\Delta^{++}$(1232) production in hadronic Z decays (1995)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...

A measurement of the \Delta^{++}(1232) inclusive production in hadronic decays of the Z at LEP is presented, based on 1.3 million hadronic events collected~ by the DELPHI~ detector in the 1994 LEP...

Measurement of $\Delta^{++}$(1232) production in hadronic Z decays (1995)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...

A measurement of the \Delta^{++}(1232) inclusive production in hadronic decays of the Z at LEP is presented, based on 1.3 million hadronic events collected~ by the DELPHI~ detector in the 1994 LEP...

Upper limits on the branching ratios $\tau\rightarrow \mu\gamma$ and $\tau\rightarrow$ e$\gamma$ (1995)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...

The DELPHI collaboration has searched for lepton flavour violating decays \tau \rightarrow \mu \gamma and \tau \rightarrow e \gamma using a data sample of about 70~pb^{-1} of integrated luminosity...

A measurement of the $\tau$ leptonic branching fractions (1995)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...

A sample of 25000 \Z\rightarrow\tt events collected by the DELPHI experiment at LEP in 1991 and 1992 is used to measure the leptonic branching fractions of the \tau lepton. The results are B(\TEL) =...

Measurement of $\Delta^{++}$(1232) production in hadronic Z decays (1995)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...

A measurement of the \Delta^{++}(1232) inclusive production in hadronic decays of the Z at LEP is presented, based on 1.3 million hadronic events collected~ by the DELPHI~ detector in the 1994 LEP...

Upper limits on the branching ratios $\tau\rightarrow \mu\gamma$ and $\tau\rightarrow$ e$\gamma$ (1995)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...

The DELPHI collaboration has searched for lepton flavour violating decays \tau \rightarrow \mu \gamma and \tau \rightarrow e \gamma using a data sample of about 70~pb^{-1} of integrated luminosity...

A measurement of the $\tau$ leptonic branching fractions (1995)

Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...

A sample of 25000 \Z\rightarrow\tt events collected by the DELPHI experiment at LEP in 1991 and 1992 is used to measure the leptonic branching fractions of the \tau lepton. The results are B(\TEL) =...