H. Wahl

Publication List Details

Period

1975 - 2009

Number

212

Co-Authors

Determination of the $\pi \pi$ scattering lengths from a study of $K^{\pm} \to \pi^{\pm} \pi^{0} \pi^{0}$ decays (2009)

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

We report the results from a study of the full sample of $~6.031 x 10^{7} K^{\pm} \to \pi^{\pm} \pi^{0} \pi^{0}$ decays recorded by the NA48/2 experiment at the CERN SPS. As first observed in this...

Precise measurement of the $K^{\pm} \to \pi^{\pm}e^{+}e^{−}$ decay (2009)

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

A sample of 7253 $K^\pm\to\pi^\pm e^+e^-(\gamma)$ decay candidates with 1.0% background contamination has been collected by the NA48/2 experiment at the CERN SPS, allowing a precise measurement of...

Cern-Spsc-2004-029 Spsc-I-229 18.10.2004 (2008)

Letter Of Intent, D. Munday, N. Cabibbo, A. Ceccucci, V. Falaleev, F. Formenti, ...

this document we concentrate on charged kaons because the intensity of protons that can be delivered by the current SPS on the T10 target is not a limitation for this programme. We have performed a...

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+- ->...

A new measurement of direct CP violation in two pion decays of the neutral kaon (2007)

Na Collaboration Fanti, V. Fanti, A. Lai, D. Marras, L. Musa, M. D. Needham, ...

The NA48 experiment at CERN has performed a new measurement of direct CP violation, based on data taken in 1997 00 qy Z X . by simultaneously collecting K and K decays into pp and pp. The result for...

* Corresponding author. � Now at Universität Dortmund, D-44221 Dortmund, (2007)

B. Hallgren, F. Bal, G. Barr, P. Buchholz, A. Ceccucci, F. Formenti, ...

The 13 500 channels of the NA48 liquid-krypton electromagnetic calorimeter readout electronics were put into operation in 1997. The digitizer electronics employs a new gain switching technique that...

THE EUROPEAN PHYSICAL JOURNAL C (2007)

V. Fanti, A. Lai, L. Musa, M. G. Setzu, G. Barr, G. Bocquet, ...

c ○ Springer-Verlag 1999 A measurement of the transverse polarization of Λ-hyperons

3 (2007)

R. Batley, A. Bevan, R. S. Dosanjh, T. J. Gershon, G. E. Kalmus, D. J. Munday, ...

A high sensitivity investigation of K S and neutral hyperon decays using a modified K S beam.

A 40 MHz-pipelined trigger for K�P2� � decays for the CERN NA48 experiment� (2007)

G. Fischer, C. Avanzini, G. D. Barr, P. Calafiura, M. Cirilli, F. Costantini, ...

The “neutral ” trigger system for the selection of K�P2��P4 � decays of the NA48 CP-violation experiment is described. The trigger system has been implemented in a 40 MHz “dead-time...

Digital ObjeG Ide tifie (DOI) 10.1007/s100520100822 Eur. Phys. J. C 22, 231--254 (2001) (2007)

The European Phy, A. Lai, D. Marras, A. Bevana, R. S. Dosanjh, T. J. Gershonb, ...

The dire1 CP violation parameon Re # # /#) has beL meLLKKy fromthe de yrate ofnefRLK kaons into two pions usingthe NA48de8y9fL atthe CERN SPS. With 3.3 million KL colleBLB duringthe 1998 and 1999...

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...

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...

Measurement of the Ratio $\Gamma(K_L \to \pi^+ \pi^-)/\Gamma(K_L \to \pi\pm e \mp\nu)$ and Extraction of the CP Violation Parameter $|\eta+-|$ (2007)

Bevan, A., S. Dosanjh, R., J. Gershon, T., Hay, B., E. Kalmus, G., Lazzeroni, C., ...

We present a measurement of the ratio of the decay rates Gamma(KL -> pi+ pi-)/Gamma(KL -> pi e nu), denoted as Gamma(K2pi)/Gamma(Ke3). The analysis is based on data taken during a dedicated run in...

Measurement of $K^{0}_{\mu3}$ form factors (2007)

Bevan, A., Dosanjh, R. S., Gershon, T. J., Hay, B., Kalmus, G. E., Lazzeroni, C., ...

This paper reports on a new high precision measurement of the form factors of the K_{L}\to \pi^{\pm} \mu^{\mp} \nu_{\mu} decay. The data sample of about 2.3$\times 10^{6}$ events was recorded in 1999...

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...

Measurement of $K^{0}_{\mu3}$ form factors (2007)

Bevan, A, Anzivino, G, Arcidiacono, R, Barr, G, Becker, H G, Bernhard, R, ...

This paper reports on a new high precision measurement of the form factors of the K_{L}\to \pi^{\pm} \mu^{\mp} \nu_{\mu} decay. The data sample of about 2.3$\times 10^{6}$ events was recorded in 1999...

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...

CMS physics technical design report, volume II: Physics performance (2007)

Bayatian, G. L., Chatrchyan, S., Hmayakyan, G., Sirunyan, A. M., Adam, W., Bergauer, T., ...

CMS is a general purpose experiment, designed to study the physics of pp collisions at 14 TeV at the Large Hadron Collider ( LHC). It currently involves more than 2000 physicists from more than 150...

Die Kapazitätsplanung (2007)

Kimmich, J., Wahl, H.

Die Kapazitätsplanung umfasst die unternehmensübergreifende Planung der erforderlichen Kapazitäten, ausgehend vom ermittelten Primär- bzw. Sekundärbedarf. Hierbei sollen bei der Planung der...

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, R., ...

The beam and detector, used for the NA48 experiment, devoted to the measurement of Re(ε′/ε), and for the NA48/1 experiment on rare KS and neutral hyperon decays, are described.

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, R., ...

The beam and detector, used for the NA48 experiment, devoted to the measurement of Re(ε′/ε), and for the NA48/1 experiment on rare KS and neutral hyperon decays, are described.

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, R., ...

The beam and detector, used for the NA48 experiment, devoted to the measurement of Re(ε′/ε), and for the NA48/1 experiment on rare KS and neutral hyperon decays, are described.

Measurement of the branching ratios of the decays $\Xi^0 \to \sigma^+ e^- \bar{\nu}_e$ and $anti-\Xi^0 \to anti-\sigma^+ e+ \nu_e$ (2006)

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

From 56 days of data taking in 2002, the NA48/1 experiment observed 6316 Xi0 --> Sigma+ e- nubar candidates (with the subsequent Sigma+ --> p pi0 decay) and 555 anti-Xi0 --> anti-Sigma+ e+ nu...

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...

Observation of a cusp-like structure in the $\pi^{0}\pi^{0}$ invariant mass distribution from $K^{+-} \to \pi^{+-}\pi^{0}\pi^{0}$ decay and determination of the $\pi\pi$ scattering lengths (2005)

Batley, J Richard, Anzivino, Giuseppina, Arcidiacono, R, Baldini, W, Balev, S, Behler, M, ...

We report the results from a study of ~23 Million K+- ==> pi+- pizero pizero decays recorded by the NA48/2 experiment at the CERN SPS, showing an anomaly in the pizero pizero invariant mass...

A measurement of the CP-conserving component of the Decay $K^{O}_{S} \to \pi^{+}\pi^{-}\pi^{0}$ (2005)

Batley, J Richard, Lazzeroni, C, Munday, D J, Patel, M, Slater, M W, Wotton, S A, ...

The NA48 collaboration has measured the amplitude of the CP-conserving component of the decay K^0_S -> \pi^+ \pi^- \pi^0 relative to K^0_L -> \pi ^+ \pi^- \pi ^0. For the characteristic parameter...

Measurement of the vector form factor in the decay K$\_{L}\rightarrow\pi$e$\nu$ (2005)

Gjesdal, G, Eisele, F, Kamae, K, Kleinknecht, K, Lüth, V, Presser, G, ...

The Dalitz plot of 0.5*10/sup 6/ K/sub e3/ decays has been studied to measure the q/sup 2/ dependence of the vector form factor, and to determine the effect of radiative corrections. The observed...

Multiplicity cross sections for 100 GeV/c $\pi^{-}$p interactions (2005)

Berger, E L, Cocconi, Vanna T, Coghen, T, Counihan, Martin J, Gensch, Ulrich, Karimäki, V, ...

Charged particle multiplicity cross sections for 100 GeV/c pi /sup -/p inelastic interactions are presented and compared with results at other energies. The results for multiplicities n>or=4 show a...

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

Batley, J.R., Dosanjh, R.S., Gershon, T.J., Kalmus, G.E., Lazzeroni, C., Munday, D.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...

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

Batley, J.R., Dosanjh, R.S., Gershon, T.J., Kalmus, G.E., Lazzeroni, C., Munday, D.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...

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

Batley, J.R., Dosanjh, R.S., Gershon, T.J., Kalmus, G.E., Lazzeroni, C., Munday, D.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...

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...

First observation of the $K_S \to \pi^0 \gamma \gamma$ decay (2005)

Lai, A., Marras, D., Batley, J.R., Dosanjh, R.S., Gershon, T.J., Kalmus, G.E., ...

Using the NA48 detector at the CERN SPS, 31 KS->pi0 gamma gamma candidates with an estimated background of 13.7 +- 3.2 events have been observed. This first observation leads to a branching ratio of...

First observation of the $K_S \to \pi^0 \gamma \gamma$ decay (2005)

Lai, A., Marras, D., Batley, J.R., Dosanjh, R.S., Gershon, T.J., Kalmus, G.E., ...

Using the NA48 detector at the CERN SPS, 31 KS->pi0 gamma gamma candidates with an estimated background of 13.7 +- 3.2 events have been observed. This first observation leads to a branching ratio of...

First observation of the $K_S \to \pi^0 \gamma \gamma$ decay (2005)

Lai, A., Marras, D., Batley, J.R., Dosanjh, R.S., Gershon, T.J., Kalmus, G.E., ...

Using the NA48 detector at the CERN SPS, 31 KS->pi0 gamma gamma candidates with an estimated background of 13.7 +- 3.2 events have been observed. This first observation leads to a branching ratio of...

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 (2005)

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 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 Branching Ratio and Form Factors for the Decay \boldmath $K_L\to\pi^{\pm}\pi^0e^{\mp}\nu_e(\bar\nu_e)$ (2005)

Batley, J.R., Dosanjh, R.S., Gershon, T.J., Kalmus, G.E., Lazzeroni, C., Munday, D.J., ...

The $K_L\to\pi^{\pm}\pi^0e^{\mp}\nu_e(\bar\nu_e)$ decay was investigated with the NA48 detector at CERN SPS using a beam of long-lived neutral kaons. The branching ratio...

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 $\Xi^0 \rightarrow \Lambda gamma$ decay asymmetry and branching fraction (2004)

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....

Measurement of the $\Xi^0 \rightarrow \Lambda gamma$ decay asymmetry and branching fraction (2004)

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....

Measurement of the $\Xi^0 \rightarrow \Lambda gamma$ decay asymmetry and branching fraction (2004)

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....

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 (2003)

Lai, A., Marras, D., Batley, J R., Dosanjh, R S., Gershon, T J., Kalmus, G E., ...

Affiliations: CERN Imprint: 10 Oct 2002 Pages: 10 p Subjects: Particle Physics - Experimental Results Accelerator: CERN SPS Experiment: NA48 (CERN Expt. Grey Book) ; Divisional affiliation: EP See...

Precise measurements of the $K_{S} \to \gamma\gamma$ and $K_{L} \to \gamma\gamma$ decay rates (2003)

Lai, A., Marras, D., Batley, J R., Dosanjh, R S., Gershon, T J., Kalmus, G E., ...

Affiliations: CERN Imprint: 10 Oct 2002 Pages: 10 p Subjects: Particle Physics - Experimental Results Accelerator: CERN SPS Experiment: NA48 (CERN Expt. Grey Book) ; Divisional affiliation: EP See...

Precise measurements of the $K_{S} \to \gamma\gamma$ and $K_{L} \to \gamma\gamma$ decay rates (2003)

Lai, A., Marras, D., Batley, J R., Dosanjh, R S., Gershon, T J., Kalmus, G E., ...

Affiliations: CERN Imprint: 10 Oct 2002 Pages: 10 p Subjects: Particle Physics - Experimental Results Accelerator: CERN SPS Experiment: NA48 (CERN Expt. Grey Book) ; Divisional affiliation: EP See...

European Organization For Nuclear Research (2003)

J. R. Batley, G. E. Kalmus, C. Lazzeroni, D. J. Munday, M. Patel, ...

A search for the decay K S 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 found with...

European Organization For Nuclear Research (2003)

A. Lai, D. Marras, M. D. Needham, E. Olaiya, M. A. Parker, ...

e - decay modes have been studied in detail using the NA48 detector at the CERN SPS. Based on the data collected during the 1998 and 1999 run periods, a sample of 1162 K L e - candidates has been...

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 R., Dosanjh, R S., Gershon, T J., Kalmus, G E., 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...

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...

A measurement of the $K_s$ lifetime (2002)

Lai, A., Marras, D., Batley, J R., 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...

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...

Search for the decay $K_{s} \to \pi^{0}\gamma\gamma$ (2002)

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

A search for the decay K_S -> pi0gammagamma 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, an upper limit for the...

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

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

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...

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

Lai, A., Marras, D., Batley, J R., Bevan, A., 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...

Experimental-investigation of ion-beam transport in laser- initiated plasma channels (2002)

Penache, D., Niemann, C., Tauschwitz, A., Knobloch, R., Neff, S., Birkner, R., ...

The aim of the presented experiments is to study the transport of a heavy ion beam in a high-current plasma channel. The discharge is initiated in NH3 gas at pressures between 2 and 20 mbar by a...

Search for the decay $K_{s} \to \pi^{0}\gamma\gamma$ (2002)

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

A search for the decay K_S -> pi0gammagamma 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, an upper limit for the...

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

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

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...

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

Lai, A., Marras, D., Batley, J R., Bevan, A., 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...

Search for the decay $K_{s} \to \pi^{0}\gamma\gamma$ (2002)

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

A search for the decay K_S -> pi0gammagamma 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, an upper limit for the...

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

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

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...

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

Lai, A., Marras, D., Batley, J R., Bevan, A., 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 precision measurement of direct CP violation in the decay of neutral kaons into two pions (2002)

J. R. Batley, R. S. Dosanjh, T. J. Gershon, G. E. Kalmus, C. Lazzeroni, D. J. Munday, ...

The direct CP violation parameter Re(# # /#) has been measured from the decay rates of neutral kaons into two pions using the NA48 detector at the CERN SPS.

The trigger for $K^0 \rightarrow \pi^{0}\pi^{0}$ decays of the NA48 experiment at CERN (2001)

Barr, Giles David, Cundy, Donald C, Formenti, F, Gorini, B, Hallgren, Björn I, Iwanski, W, ...

The trigger used for the collection of the samples of $K^{0}$ yields $\pi^{0}\pi^{0}$ decays in the NA48 experiment at CERN uses a novel pipeline design in order to satisfy the demanding...

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...

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...

Report on the Working Group set up to Study the Requirements for Operating the SPS within the INB Framework (INBOPS) (2001)

Ball, A, Billen, R, Charavay, R, Elsener, K, Faugier, A, Jacot, C, ...

The convention signed with the French authorities for the LHC defines a new Installation Nucléaire de Base (INB). The LHC machine tunnel, the experiments, some buildings which cover access shafts to...

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 precise measurement of the direct CP violation parameter Re(ε'/ε) (2001)

A. Lai, D. Marras, A. Bevana, R. S. Dosanjh, T. J. Gershonb, B. Hayc, ...

The dire1 CP violation parameon Re # # /#) has beL meLLKKy fromthe de yrate ofnefRLK kaons into two pions usingthe NA48de8y9fL atthe CERN SPS. With 3.3 million KL colleBLB duringthe 1998 and 1999...

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, 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...

A new measurement of direct CP violation in two pion decays of the neutral kaon (1999)

Fanti, V, Lai, A, Marras, D, Musa, L, Bevan, A V, Gershon, T J, ...

The NA48 experiment at CERN has performed a new measurement of direct CP violation, based on data taken in 1997 by simultaneously collecting $kl$ and $ks$ decays into $pipin$ and $pipic$. The result...

Measurement of the decay rate and form factor parameter $\alpha_{K}*$ in the decay $K_{L} \rightarrow e^{+}e^{-}\gamma$ (1999)

Fanti, V, Lai, A, Musa, L, Marras, D, Nappi, A, Hay, B, ...

The decay rate of the neutral K meson $\mathrm{K_{L} \rightarrow e^{+}e^{-}\gamma}$ has been measured with the NA48 detector at the CERN SPS. A total of 6864 events has been observed with an...

Direct search for light gluinos (1999)

Fanti, V., Lai, A., Musa, L., Marras, D., Nappi, A., Hay, B., ...

We present the results for a direct search for light gluinos through the appearance of $\eta\rightarrow 3\pin$ with high transverse momentum in the vacuum tank of the NA48 experiment at CERN. We find...

Direct search for light gluinos (1999)

Fanti, V., Lai, A., Musa, L., Marras, D., Nappi, A., Hay, B., ...

We present the results for a direct search for light gluinos through the appearance of $\eta\rightarrow 3\pin$ with high transverse momentum in the vacuum tank of the NA48 experiment at CERN. We find...

Direct search for light gluinos (1999)

Fanti, V., Lai, A., Musa, L., Marras, D., Nappi, A., Hay, B., ...

We present the results for a direct search for light gluinos through the appearance of $\eta\rightarrow 3\pin$ with high transverse momentum in the vacuum tank of the NA48 experiment at CERN. We find...

Direct search for light gluinos (1998)

Fanti, V, Lai, A, Musa, L, Marras, D, Nappi, A, Hay, B, ...

We present the results for a direct search for light gluinos through the appearance of $\eta\rightarrow 3\pin$ with high transverse momentum in the vacuum tank of the NA48 experiment at CERN. We find...

Space charge in ionization detectors and the NA48 electromagnetic calorimeter (1998)

Palestini, S, Barr, Giles David, Ceccucci, Augusto, Cogan, J, Cundy, Donald C, Fischer, G, ...

The subject of space charge due to positive ions slowly moving in parallel plate ionization chambers is considered. A model for the degradation of the detector response is developed, with particular...

The simultaneous and nearly-collinear K0 beams for experiment NA48 (1998)

Biino, C, Doble, Niels T, Gatignon, L, Grafström, P, Wahl, H

A system of simultaneous and nearly-collinear beams of long- and short-lived neutral kaons has been installed and extensively studied. These beams form an integral part of the NA48 experiment at the...

The simultaneous long- and short-lived neutral kaon beams for experiment NA48 (1998)

Biino, C, Doble, Niels T, Gatignon, L, Grafström, P, Wahl, H

Simultaneous, nearly-collinear beams of long- and short-lived neutral kaons are an essential feature of the precision CP-violation experiment NA48 *) at the SPS. The present report describes the...

Z-pinch plasma lens focusing of a heavy-ion beam (1991)

Boggasch, E., Jacoby, J., Wahl, H., Hoffmann, D.H.H., Laux, W., ...

For the first time a heavy-ion beam was focused using a z-pinch plasma lens. The diameter of an incident, parallel, 460-MeV argon-ion beam was reduced from 8 mm (FWHM) to 2 mm within 230 mm...

Energy loss of heavy ions in a dense hydrogen plasma (1990)

Hoffmann, D.H.H., Wahl, H., Haas, C.R., Kunze, H., Brandenburg, W., ...

The energy loss of heavy ions with an energy of 1.4 MeV/u in a hydrogen plasma has been measured. A 20 cm long z-pinch has been used as plasma target. Our data show a strong enhancement of the...

Energy loss of heavy ions in a hydrogen discharge plasma (1989)

Noll, R., Kunze, H., Haas, C.R., Weyrich, K., Hoffmann, D.H.H., Jacoby, J., ...

The energy loss heavy ions in a plasma environment was measured by a time-of-flight method (TOF). It was possible to determine the energy loss for six different ion sepcies, high 40 Ca, high 74 Ge,...

INVESTIGATION OF THE TRANSMISSION AND STOPPING OF LIGHT IONS PASSING THROUGH A PLASMA TARGET (1988)

Gardes, D., Bimbot, R., Della-Negra, S., Dumail, M., Kubica, B., Richard, A., ...

Transmission and energy losses of 2 MeV/u Carbon and Sulphur beams passing through a plasma target, have been extensively investigated. A hydrogen plasma ignited by an electrical discharge was...

Experimental observation of enhanced stopping of heavy ions in a hydrogen plasma (1988)

Hoffmann, D.H.H., Weyrich, K., Wahl, H., Peter, T., Jacoby, J., ...

Enhanced energy loss of 333 MeV(238) U ions in a hydrogen discharge plasma with a high degree of ionization has been observed. The ion stopping in a plasma environment exceeds the stopping in cold...

INVESTIGATION OF THE TRANSMISSION AND STOPPING OF LIGHT IONS PASSING THROUGH A PLASMA TARGET (1988)

Gardes, D., Bimbot, R., Della-Negra, S., Dumail, M., Kubica, B., Richard, A., ...

Transmission and energy losses of 2 MeV/u Carbon and Sulphur beams passing through a plasma target, have been extensively investigated. A hydrogen plasma ignited by an electrical discharge was...

INVESTIGATION OF THE TRANSMISSION AND STOPPING OF LIGHT IONS PASSING THROUGH A PLASMA TARGET (1988)

Gardes, D., Bimbot, R., Della-Negra, S., Dumail, M., Kubica, B., Richard, A., ...

Transmission and energy losses of 2 MeV/u Carbon and Sulphur beams passing through a plasma target, have been extensively investigated. A hydrogen plasma ignited by an electrical discharge was...

INVESTIGATION OF THE TRANSMISSION AND STOPPING OF LIGHT IONS PASSING THROUGH A PLASMA TARGET (1988)

Gardes, D., Bimbot, R., Della-Negra, S., Dumail, M., Kubica, B., Richard, A., ...

Transmission and energy losses of 2 MeV/u Carbon and Sulphur beams passing through a plasma target, have been extensively investigated. A hydrogen plasma ignited by an electrical discharge was...

Multiplicity distributions in [pi]+d and pd collisions at 100 GeV/c (1976)

Dado, S., Engler, A., Keyes, G., Kraemer, R. W., Yekutieli, G., Binkley, M., ...

From an exposure of the 30-inch deuterium bubble chamber at Fermilab we examine 7600 events with three or more charged prongs. Multiplicity distributions for [pi]+n, pn, [pi]+d and pd collisions are...