Using data taken during the year 2000 with the NA48 detector at the CERN SPS, a search for the CP violating decay KS→3π0 has been performed. From a fit to the lifetime distribution of about 4.9 million reconstructed K-0/K-0bar→3π0 decays, the CP violating amplitude η000=A(KS→3π0)/A(KL→3π0) has been found to be Re(η000)=−0.002±0.011±0.015 and Im(η000)=−0.003±0.013±0.017. This corresponds to an upper limit on the branching fraction of Br(KS→3π0)<7.4×10−7 at 90% confidence level. The result is used to improve knowledge of Re(ε) and the CPT violating quantity Im(δ) via the Bell–Steinberger relation.

Search for CP violation in K0 --> 3 pi(0) decays

CONTALBRIGO, Marco;DALPIAZ, Pietro;FIORINI, Massimiliano;GIANOLI, Alberto;MARTINI, Mara;PETRUCCI, Ferruccio Carlo;SAVRIE', Mauro;
2005

Abstract

Using data taken during the year 2000 with the NA48 detector at the CERN SPS, a search for the CP violating decay KS→3π0 has been performed. From a fit to the lifetime distribution of about 4.9 million reconstructed K-0/K-0bar→3π0 decays, the CP violating amplitude η000=A(KS→3π0)/A(KL→3π0) has been found to be Re(η000)=−0.002±0.011±0.015 and Im(η000)=−0.003±0.013±0.017. This corresponds to an upper limit on the branching fraction of Br(KS→3π0)<7.4×10−7 at 90% confidence level. The result is used to improve knowledge of Re(ε) and the CPT violating quantity Im(δ) via the Bell–Steinberger relation.
2005
Batley, Jr; Dosanjh, Rs; Gershon, Tj; Kalmus, Ge; Lazzeroni, C; Munday, Dj; Olaiya, E; Parker, Ma; White, To; Wotton, Sa; Arcidiacono, R; Barr, G; Bocquet, G; Ceccucci, A; CUHADAR DONSZELMANN, T; Cundy, D; Doble, N; Falaleev, V; Gatignon, L; Gonidec, A; Gorini, B; Grafstrom, P; Kubischta, W; Lacourt, A; Mikulec, I; Norton, A; PANZER STEINDEL, B; Tatishvili, G; Wahl, H; Cheshkov, C; Hristov, P; Kekelidze, V; Madigojine, D; Molokanova, N; Potrebenikov, Y; Zinchenko, A; Martin, V; Rubin, P; Sacco, R; Walker, A; Contalbrigo, Marco; Dalpiaz, Pietro; Duclos, J; Fiorini, Massimiliano; Frabetti, Pl; Gianoli, Alberto; Martini, Mara; Petrucci, Ferruccio Carlo; Savrie', Mauro; Bizzeti, A; Calvetti, M; Collazuol, G; Graziani, G; Iacopini, E; Lenti, M; Martelli, F; Veltri, M; Eppard, K; Eppard, M; Hirstius, A; Kleinknecht, K; Koch, U; Kopke, L; DA SILVA, Pl; Marouelli, P; Mestvirishvili, I; Pellmann, I; Peters, A; Schmidt, Sa; Schonharting, V; Schue, Y; Wanke, R; Winhart, A; Wittgen, M; Chollet, Jc; Fayard, L; ICONOMIDOU FAYARD, L; Unal, G; WINGERTER SEEZ, I; Anzivino, G; Cenci, P; Imbergamo, E; Lubrano, P; Mestvirishvili, A; Nappi, A; Pepe, M; Piccini, M; Casali, R; Cerri, C; Cirilli, M; Costantini, E; Fantechi, R; Fiorini, L; Giudici, S; Mannelli, I; Pierazzini, G; Sozzi, M; Cheze, Jb; DE BEER, M; Debu, P; Derue, E; Formica, A; DE CASSAGNAC, Rg; Gouge, G; Marel, G; Mazzucato, E; Peyaud, B; Turlay, R; Vallage, B; Holder, M; Maier, A; Ziolkowski, M; Biino, C; Cartiglia, N; Marchetto, F; Menichetti, E; Pastrone, N; Nassalski, J; Rondio, E; Szleper, M; Wislicki, W; Wronka, S; Dibon, H; Jeitler, M; Markytan, M; Neuhofer, G; Pernicka, M; Taurok, A; Widhalm, L.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11392/516678
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