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Search for CP violation in $K^{0} \to 3 \pi^{0}$ decays
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 million reconstructed K0/K0bar -> 3 pi0 decays, the CP violating amplitude eta_000 = A(K_S -&g...
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Lenguaje: | eng |
Publicado: |
2004
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Materias: | |
Acceso en línea: | https://dx.doi.org/10.1016/j.physletb.2005.01.065 http://cds.cern.ch/record/788599 |
_version_ | 1780904472130617344 |
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author | Lai, A. Marras, D. Batley, J.R. Dosanjh, R.S. Gershon, T.J. Kalmus, G.E. Lazzeroni, C. Munday, D.J. Olaiya, E. Parker, Michael Andrew White, T.O. Wotton, S.A. 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, Heinrich Cheshkov, C. Hristov, P. Kekelidze, V. Madigojine, D. Molokanova, N. Potrebenikov, Yu. Zinchenko, A. Martin, V. Rubin, P. Sacco, R. Walker, A. Contalbrigo, M. Dalpiaz, P. Duclos, J. Fiorini, M. Frabetti, P.L. Gianoli, A. Martini, M. Petrucci, F. Savrie, M. 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. Lopes da Silva, P. Marouelli, P. Mestvirishvili, I. Pellmann, I. Peters, A. Schmidt, S.A. Schonharting, V. Schue, Y. Wanke, R. Winhart, A. Wittgen, M. Chollet, J.C. 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, F. Fantechi, R. Fiorini, L. Giudici, S. Mannelli, I. Pierazzini, G. Sozzi, M. Cheze, J.B. De Beer, M. Debu, P. Derue, F. Formica, A. Granier de Cassagnac, R. 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, Ezio A. 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. |
author_facet | Lai, A. Marras, D. Batley, J.R. Dosanjh, R.S. Gershon, T.J. Kalmus, G.E. Lazzeroni, C. Munday, D.J. Olaiya, E. Parker, Michael Andrew White, T.O. Wotton, S.A. 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, Heinrich Cheshkov, C. Hristov, P. Kekelidze, V. Madigojine, D. Molokanova, N. Potrebenikov, Yu. Zinchenko, A. Martin, V. Rubin, P. Sacco, R. Walker, A. Contalbrigo, M. Dalpiaz, P. Duclos, J. Fiorini, M. Frabetti, P.L. Gianoli, A. Martini, M. Petrucci, F. Savrie, M. 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. Lopes da Silva, P. Marouelli, P. Mestvirishvili, I. Pellmann, I. Peters, A. Schmidt, S.A. Schonharting, V. Schue, Y. Wanke, R. Winhart, A. Wittgen, M. Chollet, J.C. 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, F. Fantechi, R. Fiorini, L. Giudici, S. Mannelli, I. Pierazzini, G. Sozzi, M. Cheze, J.B. De Beer, M. Debu, P. Derue, F. Formica, A. Granier de Cassagnac, R. 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, Ezio A. 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. |
author_sort | Lai, A. |
collection | CERN |
description | 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 million reconstructed K0/K0bar -> 3 pi0 decays, the CP violating amplitude eta_000 = A(K_S -> 3 pi0)/A(K_L -> 3 pi0) has been found to be Re(eta_000) = -0.002 +- 0.011 +- 0.015 and Im(eta_000) = -0.003 +- 0.013 +- 0.017. This corresponds to an upper limit on the branching fraction of Br(K_S -> 3 pi0) < 7.4 x 10^-7 at 90% confidence level. The result is used to improve knowledge of Re(epsilon) and the CPT violating quantity Im(delta) via the Bell-Steinberger relation. |
id | cern-788599 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2004 |
record_format | invenio |
spelling | cern-7885992023-08-03T03:52:37Zdoi:10.1016/j.physletb.2005.01.065http://cds.cern.ch/record/788599engLai, A.Marras, D.Batley, J.R.Dosanjh, R.S.Gershon, T.J.Kalmus, G.E.Lazzeroni, C.Munday, D.J.Olaiya, E.Parker, Michael AndrewWhite, T.O.Wotton, S.A.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, HeinrichCheshkov, C.Hristov, P.Kekelidze, V.Madigojine, D.Molokanova, N.Potrebenikov, Yu.Zinchenko, A.Martin, V.Rubin, P.Sacco, R.Walker, A.Contalbrigo, M.Dalpiaz, P.Duclos, J.Fiorini, M.Frabetti, P.L.Gianoli, A.Martini, M.Petrucci, F.Savrie, M.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.Lopes da Silva, P.Marouelli, P.Mestvirishvili, I.Pellmann, I.Peters, A.Schmidt, S.A.Schonharting, V.Schue, Y.Wanke, R.Winhart, A.Wittgen, M.Chollet, J.C.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, F.Fantechi, R.Fiorini, L.Giudici, S.Mannelli, I.Pierazzini, G.Sozzi, M.Cheze, J.B.De Beer, M.Debu, P.Derue, F.Formica, A.Granier de Cassagnac, R.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, Ezio A.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.Search for CP violation in $K^{0} \to 3 \pi^{0}$ decaysParticle Physics - ExperimentUsing 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 million reconstructed K0/K0bar -> 3 pi0 decays, the CP violating amplitude eta_000 = A(K_S -> 3 pi0)/A(K_L -> 3 pi0) has been found to be Re(eta_000) = -0.002 +- 0.011 +- 0.015 and Im(eta_000) = -0.003 +- 0.013 +- 0.017. This corresponds to an upper limit on the branching fraction of Br(K_S -> 3 pi0) < 7.4 x 10^-7 at 90% confidence level. The result is used to improve knowledge of Re(epsilon) and the CPT violating quantity Im(delta) via the Bell-Steinberger relation.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 K0/K¯0→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.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 million reconstructed K0/K0bar -> 3 pi0 decays, the CP violating amplitude eta_000 = A(K_S -> 3 pi0)/A(K_L -> 3 pi0) has been found to be Re(eta_000) = -0.002 +- 0.011 +- 0.015 and Im(eta_000) = -0.003 +- 0.013 +- 0.017. This corresponds to an upper limit on the branching fraction of Br(K_S -> 3 pi0) < 7.4 x 10^-7 at 90% confidence level. The result is used to improve knowledge of Re(epsilon) and the CPT violating quantity Im(delta) via the Bell-Steinberger relation.hep-ex/0408053oai:cds.cern.ch:7885992004 |
spellingShingle | Particle Physics - Experiment Lai, A. Marras, D. Batley, J.R. Dosanjh, R.S. Gershon, T.J. Kalmus, G.E. Lazzeroni, C. Munday, D.J. Olaiya, E. Parker, Michael Andrew White, T.O. Wotton, S.A. 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, Heinrich Cheshkov, C. Hristov, P. Kekelidze, V. Madigojine, D. Molokanova, N. Potrebenikov, Yu. Zinchenko, A. Martin, V. Rubin, P. Sacco, R. Walker, A. Contalbrigo, M. Dalpiaz, P. Duclos, J. Fiorini, M. Frabetti, P.L. Gianoli, A. Martini, M. Petrucci, F. Savrie, M. 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. Lopes da Silva, P. Marouelli, P. Mestvirishvili, I. Pellmann, I. Peters, A. Schmidt, S.A. Schonharting, V. Schue, Y. Wanke, R. Winhart, A. Wittgen, M. Chollet, J.C. 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, F. Fantechi, R. Fiorini, L. Giudici, S. Mannelli, I. Pierazzini, G. Sozzi, M. Cheze, J.B. De Beer, M. Debu, P. Derue, F. Formica, A. Granier de Cassagnac, R. 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, Ezio A. 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. Search for CP violation in $K^{0} \to 3 \pi^{0}$ decays |
title | Search for CP violation in $K^{0} \to 3 \pi^{0}$ decays |
title_full | Search for CP violation in $K^{0} \to 3 \pi^{0}$ decays |
title_fullStr | Search for CP violation in $K^{0} \to 3 \pi^{0}$ decays |
title_full_unstemmed | Search for CP violation in $K^{0} \to 3 \pi^{0}$ decays |
title_short | Search for CP violation in $K^{0} \to 3 \pi^{0}$ decays |
title_sort | search for cp violation in $k^{0} \to 3 \pi^{0}$ decays |
topic | Particle Physics - Experiment |
url | https://dx.doi.org/10.1016/j.physletb.2005.01.065 http://cds.cern.ch/record/788599 |
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