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...
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+- ->...
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...
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...
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...
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....
Batley, J R, Anzivino, Giuseppina, Arcidiacono, R, Baldini, W, Balev, S, Behler, M, ...
Measured ratios of decay rates for $\rkekp$, $\rkmukp$ and $\rkmuke$ are presented. These measurements are based on $K^\pm$ decays collected in a dedicated run in 2003 by the NA48/2 experiment at...
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.
Batley, J R, Sozzi, M, Pierazzini, G M, Michetti, A, Mannell, I, Lamanna, G, ...
Measured ratios of decay rates for $\rkekp$, $\rkmukp$ and $\rkmuke$ are presented. These measurements are based on $K^\pm$ decays collected in a dedicated run in 2003 by the NA48/2 experiment at...
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...
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...
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...
Helicity Analysis of Semileptonic Hyperon Decays Including Lepton Mass Effects (2005)
Kadeer, A., Körner, J. G., Moosbrugger, U.
Using the helicity method we derive complete formulas for the joint angular decay distributions occurring in semileptonic hyperon decays including lepton mass and polarization effects. Compared to...
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...
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...
Observation of the rare decay K-S ->pi(0)mu(+)mu(-) (2004)
Batley, JR, Kalmus, GE, Lazzeroni, C, Munday, DJ, Patel, M, Slater, MW, ...
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...
Observation of the rare decay K-S -> pi(0)e(+)e(-) (2003)
Batley, JR, Kalmus, GE, Lazzeroni, C, Munday, DJ, Patel, M, Slater, MW, ...
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...