George Ernest Kalmus

Publication List Details

Period

1990 - 2007

Number

143

Co-Authors

First Observation and Measurement of the Decay K$^{+-}$ $\to\pi^{+-}e^{+}e^{-}\gamma$ (2007)

Batley, J R, Culling, A J, Kalmus, George Ernest, Lazzeroni, C, Munday, D J, Slater, M W, ...

Using the full data set of the NA48/2 experiment, the decay K+- -> pi+- e+ e- gamma is observed for the first time, selecting 120 candidates with 7.3 +- 1.7 estimated background events. With K+- ->...

New high statistics measurement of $K_{e4}$ decay form factors and $\pi \pi$ scattering phase shifts (2007)

Batley, J Richard, Culling, A J, Kalmus, George Ernest, Lazzeroni, C, Munday, D J, Slater, M W, ...

We report results from a new measurement of the K_{e4} decay K^{+-} -> \pi^+ \pi^- e^{+-} v by the NA48/2 collaboration at the CERN SPS, based on a partial sample of more than 670000 Ke4 decays in...

Determination of the relative decay rate KS $\to \pi e \nu$ / KL $\to \pi e \nu$ (2007)

Batley, J R, Kalmus, George Ernest, Lazzeroni, C, Munday, D J, Patel, M, Slater, M W, ...

The decay rate of KS $\to \pi e \nu$ relative to the rate of KL $\to \pi e \nu$ has been measured by the NA48 collaboration in a neutral Kaon beam originating from 400 GeV proton-Be interactions at...

Search for direct CP violating charge asymmetries in $K^\pm\to\pi^\pm\pi^+\pi^-$ and $K^\pm\to\pi^\pm\pi^0\pi^0$ decays (2007)

Batley, J Richard, Culling, A J, Kalmus, George Ernest, Lazzeroni, C, Munday, D J, Slater, M W, ...

A measurement of the direct CP violating charge asymmetries of the Dalitz plot linear slopes $A_g=(g^+-g^-)/(g^++g^-)$ in $K^\pm\to\pi^\pm\pi^+\pi^-$ and $K^\pm\to\pi^\pm\pi^0\pi^0$ decays by the...

Measurements of the $\Xi^0$ Lifetime and the $\overline{\Xi^0}/\Xi^0$ Flux Ratio in a Neutral Beam (2007)

Batley, J Richard, Kalmus, George Ernest, Lazzeroni, C, Munday, D J, Patel, M, Slater, M W, ...

A total of 235 698 Xi0 -> Lambda pi0 and 21 527 anti-Xi0 -> anti-Lambda pi0 decays were selected from data obtained by the NA48/1 experiment at CERN. From this sample, the lifetime of the Xi0 hyperon...

The Beam and Detector for the NA48 Neutral Kaon CP Violation Experiment at CERN (2007)

Fanti, V, Lai, A, Marras, D, Musa, L, Nappi, A, Batley, J Richard, ...

The Beam and Detector, used for the NA48 experiment, devoted to the measurement of $Re(\epsilon^{\prime}/\epsilon)$, and for the NA48/1 experiment on rare K_S and neutral hyperon decays, are...

First observation and branching fraction and decay parameter measurements of the weak radiative decay $\Xi^0 \to \Lambda e^{+}e^{-}$ (2007)

Batley, J Richard, Kalmus, George Ernest, Lazzeroni, C, Munday, D J, Patel, M, Slater, M W, ...

The weak radiative decay $Xi^0 -> \Lambda e^+ e^- $ has been detected for the first time. We find 412 candidates in the signal region, with an estimated background of $15pm 5$ events. We determine...

Measurement of the Dalitz plot slopes of the $K^\pm\to\pi^\pm\pi^+\pi^-$ decay (2007)

Batley, J Richard, Culling, A J, Kalmus, George Ernest, Lazzeroni, C, Munday, D J, Slater, M W, ...

The distribution of the $K^\pm\to\pi^\pm\pi^+\pi^-$ decays in the Dalitz plot has been measured by the NA48/2 experiment at the CERN SPS with a sample of $4.71\times 10^8$ fully reconstructed events....

Measurement of the Ratio $\Gamma(K_L \rightarrow \pi^+\pi^-) / \Gamma(K_L \rightarrow \pi^{\pm}e^{\mp}\nu)$ and Extraction of the CP Violation Parameter $|\eta_{+-}|$ (2006)

Lai, A, Anzivino, Giuseppina, Arcidiacono, R, Barr, G, Becker, H G, Bertanza, L, ...

We present a measurement of the ratio of the decay rates $\Gamma (K_L \rightarrow\pi^+\pi^-) / \Gamma(K_L \rightarrow\pi^{\pm}e^{\mp}\nu)$, denoted as $\Gamma_{K2\pi}/\Gamma_{Ke3}$. The analysis is...

Measurement of $k^0 _{\mu 3}$ form factors (2006)

Lai, A, Marras, D, Bevan, A, Dosanjh, R S, Gershon, T J, Hay, B, ...

This paper reports on a new high precision measurement of the form factors of the $\rm K_{L}\rightarrow~\pi^{\pm}~\mu^{\mp}~\nu_{\mu}$} decay. The data sample of about 2.3X10^6 events was recorded in...

Measurement of the branching ratios of the decays $\Xi^{0}\rightarrow \sigma^{+} e^{-} \overline{\nu}_{e}$ and $\overline{\Xi^{0}}\rightarrow \overline{\sigma^{+}} e^{+} \nu_{e}$ (2006)

Batley, J Richard, Anzivino, Giuseppina, Arcidiacono, R, Baldini, W, Behler, M, Biino, C, ...

From 56 days of data taking in 2002, the NA48/1 experiment observed 6316 $\Xi^{0}\rightarrow \Sigma^{+} e^{-} \overline{\nu}_{e}$ candidates (with the subsequent $\Sigma^{+} \rightarrow p \pi^{0}$...

Search for direct CP-violation in $K^{\pm}\to \pi^{\pm}\pi^{0}\pi^{0}$ decays (2006)

Batley, J Richard, Culling, A J, Kalmus, George Ernest, Lazzeroni, C, Munday, D J, Slater, M W, ...

A search for direct CP-violation in K+- --> pi+-pi0pi0 decays based on 47.14 million events has been performed by the NA48/2 experiment at the CERN SPS. The asymmetry in the Dalitz plot linear slopes...

Search for direct CP-violation in $K^{\pm} \to \pi^{\pm} \pi^{0} \pi^{0}$ decays (2006)

Batley, J Richard, Culling, A J, Kalmus, George Ernest, Lazzeroni, C, Munday, D J, Slater, M W, ...

A search for direct CP-violation in $K^{\pm}\rightarrow \pi^\pm \pi^0 \pi^0$ decay based on 47.14 million events has been performed by the NA48/2 experiment at the CERN SPS. The asymmetry in the...

Measurement of the $K_{L} \to e^{+}e^{-}e^{+} e^{-}$ Decay Rate (2005)

Lai, A, Bearden, I G, Marras, D, Batley, J Richard, Dosanjh, R S, Gershon, T J, ...

The decay rate of the long-lived neutral K meson into the e^+ e^- e^+ e^- final state has been measured with the NA48 detector at the CERN SPS. Using data collected in 1998 and 1999, a total of 200...

Search for CP violation in $K^{0} \to 3\pi^{0}$ decays (2005)

Lai, A, Marras, D, Batley, J Richard, Dosanjh, R S, Gershon, T J, Kalmus, George Ernest, ...

Using data taken during the year 2000 with the NA48 detector at the CERN SPS, a search for the CP violation decay K_s -> 3pi^0 has been performed. From a fit to the lifetime distribution of about 4.9...

Measurement of the Radiative Ke3 Branching Ratio (2004)

Anzivino, Giuseppina, Barr, G, Becker, H G, Bertanza, L, Bevan, A, Biino, C, ...

We present a measurement of the relative branching ratio of the decay KL -> pi e nu gamma (Ke3gamma) with respect to KL-> pi e nu (gamma) (Ke3+Ke3gamma) decay. The result is based on observation of...

Measurement of the Radiative $K_{e3}$ Branching Ratio (2004)

Lai, A, Marras, D, Bevan, A, Dosanjh, R S, Gershon, T J, Hay, B, ...

We present a measurement of the relative branching ratio of the decay {K}^0 -> pi+-e-+ nu gamma ({K}_e3 gamma) with respect to {K}^0 -> pi+- e-+ nu (gamma) ({k}_e3 + k}_e3 gamma) decay. The result is...

Measurement of $K_{e3}^{0}$ form factors (2004)

Lai, A, Marras, D, Bevan, A, Dosanjh, R S, Gershon, T J, Hay, B, ...

The semileptonic decay of the neutral K meson KL -> pi+-e-+v (Ke3), was used to study the strangeness-changing weak interaction of hadrons. A sample of 5.6 million reconstructed events recorded by...

Measurement of the branching ratio of the deca $K_{L} /to \pi^{\pm}e^{\mp}\nu$ and extraction of the CKM parameter Vus (2004)

Lai, A, Lai, A, Marras, D, Bevan, A, Dosanjh, R S, Gershon, T J, ...

We present a new measurement of the branching ratio R of the decay KL -> pi+-e-+nu, denoted as Ke3, relative to all charged Kl decays with two tracks, based on data taken with the NA48 detector at...

Search for CP violation in $K^{0} \to 3 \pi^{0}$ decays (2004)

Batley, J Richard, Lai, A, Marras, D, Batley, J Richard, Dosanjh, R S, Gershon, T J, ...

Using data taken during the year 2000 with the NA48 detector at the CERN SPS, a search for the CP violating decay K_S -> 3 pi0 has been performed. From a fit to the lifetime distribution of about 4.9...

Observation of the rare decays $K_{s} \to \pi^{0} \mu^{+} \mu^{-}$ (2004)

Batley, J Richard, Kalmus, George Ernest, Lazzeroni, C, Munday, D J, Patel, M, Slater, M W, ...

A search for the decay Ks -> pi0 mu+ mu- has been made by the NA48/1 Colaboration at the CERN SPS accelerator. The data were collected during 2002 with a high intensity Ks beam. Six events were found...

Measurement of the branching ratio and form factors for the decay $K_{L} \to \pi^{\pm}\pi^{0} e^{\mp}\nu_{e}(\bar{\nu}_{e})$ (2004)

Batley, J Richard, Dosanjh, R S, Gershon, T J, Kalmus, George Ernest, Lazzeroni, C, Munday, D J, ...

The K_L -> pi+- pi0 e-+ nu_e(nubar_e) decau was investigated with the NA48 detector at CERN SPS using a beam of long-lived neutral kaons. The branching ratio Br(K_L -> pi+- pi0 e-+...

Measurement of the $\Xi^0 \rightarrow \Lambda\gamma$ Decay Asymmetry and Branching Fraction (2003)

Lai, A, Marras, D, Bevan, A, Dosanjh, R S, Gershon, T J, Hay, B, ...

In data taken with the NA48 experiment at the CERN SPS in 1999, 730 candidates of the weak radiative hyperon decay Xi0 -> Lambda gamma have been found with an estimated background of 58 +- 8 events....

Observation of the rare decay $K_S \rightarrow \pi^0 \mathrm{e}^+\mathrm{e}^-$ (2003)

Batley, J Richard, Kalmus, George Ernest, Lazzeroni, C, Munday, D J, Patel, M, Slater, M W, ...

A search for the decay K_S -> pi0e+e- has been made by the NA48/1 experiment at the CERN SPS accelerator. Using data collected during 89 days in 2002 with a high-intensity K_S beam, 7 events were...

First observation of the $K_{S}\to \pi^{0}\gamma\gamma$ decay (2003)

Lai, A, Marras, D, Batley, J Richard, Dosanjh, R S, Gershon, T J, Kalmus, George Ernest, ...

Using the NA48 detector at the CERN SPS, 31K_S -> \pi^0\gamma\gamma candidates with an estimated background of 13.7 +- 3.2 events have been observed. This first observation leads to a branching ratio...

Investigation of $K_{L,S} \rightarrow \pi^{+}\pi^{-}e^{+}e^{-}$ decays (2003)

Lai, A, Anzivino, Giuseppina, Arcidiacono, R, Barr, G, Becker, H G, Bevan, A, ...

The K_L -> pi+pi-e+e- and K_S -> pi+pi-e+e- decay modes have been studied in detail using the NA48 detector at CERN SPS. Based on the data collected during the 1998 and 1999 run periods, a sample of...

Search for the decay $K_{s} \to \pi^{0}\gamma\gamma$ (2003)

Lai, A, Marras, D, Batley, J Richard, Bevan, A, Dosanjh, R S, Gershon, T J, ...

A search for the decay $K_S\to\pi^0\gamma\gamma$ has been made using the NA48 detector at the CERN SPS. Using data collected in 1999 during a 40-hour run with a high-intensity $K_S$ beam, an upper...

Precise measurements of the $K_{S}\to\gamma\gamma$ and $K_{L}\to\gamma\gamma$ decay rates (2002)

Lai, A, Marras, D, Batley, J Richard, Dosanjh, R S, Gershon, T J, Kalmus, George Ernest, ...

The K_S -> gammagamma decay rate has been measured with the NA48 detector using a high intensity short neutral beam from the CERN SPS. The measured branching ratio BR(K_S) -> gammagamma = (2.78 +-...

A precision measurement of direct CP violation in the decay of neutral kaons into two pions (2002)

Batley, J Richard, Dosanjh, R S, Gershon, T J, Kalmus, George Ernest, Lazzeroni, C, Munday, D J, ...

The direct CP violation parameter Re($\epsilon'/\epsilon)$ has been measured from the decay rates of neutral kaons into two pions using the NA48 detector at the CERN SPS. The 2001 running period was...

Precise measurement of the decay $K_{L} \to \pi^{0}\gamma\gamma$ (2002)

Lai, A, Marras, D, Bevan, A, Dosanjh, R S, Gershon, T J, Hay, B, ...

The decay rate of $\klpgg$ has been measured with the NA48 detector at the CERN SPS. A total of $2558$ $\klpgg$ candidates have been observed with a residual background of $3.2\%$. The branching...

A Measurement of the $K_{s}$ Lifetime (2002)

Lai, A, Marras, D, Batley, J Richard, Bevan, A, Dosanjh, R S, Gershon, T J, ...

A measurement of the $\KS$ lifetime is presented using data recorded by the NA48 experiment at the CERN-SPS during 1998 and 1999. The $\KS$ lifetime is derived from the ratio of decay time...

New measurements of the $\eta$ and $K^0$ masses (2002)

Lai, A, Marras, D, Batley, J Richard, Bevan, A J, Dosanjh, R S, Gershon, T J, ...

New measurements of the $\eta$ and $K^0$ masses have been performed using decays to 3$\pi^0$ with the NA48 detector at the CERN SPS. Using symmetric decays to reduce systematic effects, the results...

A precise measurement of the direct CP violation parameter $Re(\epsilon'/\epsilon)$ (2001)

Lai, A, Marras, D, Bevan, A, Dosanjh, R S, Gershon, T J, Hay, B, ...

The direct CP violation parameter \Ree\ has been measured from the decay rates of neutral kaons into two pions using the NA48 detector at the CERN SPS. With 3.3 million \klpiopio\ events collected...

Kaon physics with a high-intensity proton driver (2001)

Belyaev, A, Buchalla, Gerhard, Ceccucci, Augusto, Chizhov, M V, D'Ambrosio, G, Dorokhov, A E, ...

We study opportunities for future high-precision experiments in kaon physics using a high-intensity proton driver, which could be part of the front-end of a muon storage ring complex. We discuss in...

Search for the decay $K_{s} \to \pi^{0}e^{+}e^{-}$ (2001)

Lai, A, Marras, D, Batley, J Richard, Bevan, A, Dosanjh, R S, Gershon, T J, ...

A search for the decay $\kspiee$ has been made using the NA48 detector at the CERN SPS. Using data collected in 1999 during a 40-hour run with a high-intensity $\ks$ beam, an upper limit for the...

Measurement of the quadratic slope parameter in the $K_{L}\rightarrow 3\pi^{0}$ decay Dalitz plot (2001)

Lai, A, Marras, D, Musa, L, Bevan, A, Dosanjh, R S, Gershon, T J, ...

A value of \( (-6.1\pm 0.9_{stat}\pm 0.5_{syst})\times 10^{-3} \) is obtained for the quadratic slope parameter \( h \) in the \( K_{L}\rightarrow 3\pi ^{0} \) decay Dalitz plot at the NA48...

A new measurement of the branching ratio of $K_{s} \to \gamma\gamma$ (2000)

Lai, A, Marras, D, Bevan, A, Dosanjh, R S, Gershon, T J, Hay, B, ...

The decay rate of $\ksgg$ has been measured with the NA48 detector at the CERN SPS. A total of $149$ $\ksgg$ events have been observed. The branching ratio is determined to be $(2.58 \pm0.36(stat)...

Measurement of the $K_{L} \to e^{+} e^{-} e^{+} e^{-}$ Decay Rate (2000)

Lai, A, Iacopini, E, Graziani, G, Collazuol, G, Calvetti, M, Bizzeti, A, ...

The decay rate of the neutral long-lived K meson into the e+ e- e+ e- final state has been measured with the NA48 detector at the CERN SPS. Using data collected in 1999, a total of 132 events has...

Measurement of the $K_{L} \to e^{+} e^{-} e^{+} e^{-}$ Decay Rate (2000)

Lai, A, Marras, D, Bevan, A, Dosanjh, R S, Gershon, T J, Hay, B, ...

The decay rate of the neutral long-lived K meson into the e+ e- e+ e- final state has been measured with the NA48 detector at the CERN SPS. Using data collected in 1999, a total of 132 events has...

Ugo Amaldi's birthday (2000)

Myatt, Gerald, Ellis, Jonathan Richard, Kalmus, George Ernest, Llewellyn Smith, Christopher Hubert, Matthiae, Giorgio, Richter, Burton, ...

Ugo Amaldi,a man of science - pp total cross section - Neutrino physics - DELPHI & LEP physics Supersymmetry Electron-proton physics - Linear colliders - Closing address - -

SESSION 4: Weak Processes (2000)

Kalmus, George Ernest

- Charged Kaon Decays and Charm Decays

Study of Prompt Photon Production in Hadronic $Z^{0}$ Decays (1995)

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

From a sample of 1.5 million \zqq decays collected by the DELPHI detector during 1991, 1992 and 1993, the production cross section for isolated final state photons is measured and is compared with...

Search for exclusive charmless B meson decays with the DELPHI detector at LEP (1995)

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

Charmless hadronic decays of beauty mesons have been searched for using the data collected with the DELPHI detector at the LEP collider. Several two, three and four-body decay modes have been...

A measurement of the photon structure function F$_{2}^{\gamma}$ at an average Q$^{2}$ of 12 GeV$^{2}$/c$^{4}$ : results from DELPHI (1995)

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

The hadronic photon structure function F_{2}^{\gamma} has been measured in the Q^{2} range from 4 to 30~GeV^2/c^{4} and down to x values of order 0.001, using data taken with the DELPHI detector at...

Observation of short range three-particle correlations in e+e- annihilations at LEP energies (1995)

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

\def\tpc{three-particle correlation} \def\twopc{two-particle correlation} Measurements are presented of short range three-particle correlations in e^+ e^- annihilations at LEP using data collected by...

Lifetimes of charged and neutral B hadrons using event topology (1995)

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

The lifetimes of charged and neutral B hadrons have been measured using data collected by the DELPHI experiment at LEP between 1991 and 1993. B hadrons are tagged as jets with a secondary vertex and...

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, Roy, ...

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...

Lifetime and production rate of beauty baryons from Z decays (1995)

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

The production and decay of beauty baryons (b-baryons) have been studied using 1.7 \times 10^6 Z hadronic decays collected by the DELPHI detector at LEP. Three different techniques were used to...

Strange baryon production in Z hadronic decays (1995)

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

A study of the production of strange octet and decuplet baryons in hadronic decays of the Z recorded by the DELPHI detector at LEP is presented. This includes the first measurement of the \Sigma^\pm...