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Precise measurements of the $K_{S}\to\gamma\gamma$ and $K_{L}\to\gamma\gamma$ decay rates
The $K_{S} \to \gamma\gamma$ 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($K_{S}) \to \gamma\gamma = (2.78 \pm 0.06_{stat} \pm 0.04_{syst}) \times 10^{-6}$, obtained from 7461$\pm$172 $K_{S} \to \gamm...
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Lenguaje: | eng |
Publicado: |
2002
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Materias: | |
Acceso en línea: | https://dx.doi.org/10.1016/S0370-2693(02)02955-6 http://cds.cern.ch/record/588304 |
_version_ | 1780899601238196224 |
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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. 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, M. Hirstius, A. Holtz, K. 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. 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, M. Hirstius, A. Holtz, K. 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 | The $K_{S} \to \gamma\gamma$ 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($K_{S}) \to \gamma\gamma = (2.78 \pm 0.06_{stat} \pm 0.04_{syst}) \times 10^{-6}$, obtained from 7461$\pm$172 $K_{S} \to \gamma\gamma$ events, is significantly higher than the $O(p^{4})$ prediction of Chiral Perturbation Theory. Using a $K_{L}$ beam the ratio $\Gamma(K_{L} \to \gamma\gamma)/ \Gamma(K_{L} \to \pi^{0}\pi^{0}\pi^{0}) = (2.81 \pm 0.01_{stat} \pm 0.02_{syst}) \times 10^{-3}$ has been measured. |
id | cern-588304 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2002 |
record_format | invenio |
spelling | cern-5883042023-08-10T03:37:42Zdoi:10.1016/S0370-2693(02)02955-6http://cds.cern.ch/record/588304engLai, 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.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, M.Hirstius, A.Holtz, K.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.Precise measurements of the $K_{S}\to\gamma\gamma$ and $K_{L}\to\gamma\gamma$ decay ratesParticle Physics - ExperimentThe $K_{S} \to \gamma\gamma$ 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($K_{S}) \to \gamma\gamma = (2.78 \pm 0.06_{stat} \pm 0.04_{syst}) \times 10^{-6}$, obtained from 7461$\pm$172 $K_{S} \to \gamma\gamma$ events, is significantly higher than the $O(p^{4})$ prediction of Chiral Perturbation Theory. Using a $K_{L}$ beam the ratio $\Gamma(K_{L} \to \gamma\gamma)/ \Gamma(K_{L} \to \pi^{0}\pi^{0}\pi^{0}) = (2.81 \pm 0.01_{stat} \pm 0.02_{syst}) \times 10^{-3}$ has been measured.The K S → γγ 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 → γγ )=(2.78±0.06 stat ±0.04 syst )×10 −6 , obtained from 7461±172 K S → γγ events, is significantly higher than the O ( p 4 ) prediction of chiral perturbation theory. Using a K L beam the ratio Γ(K L →γγ) Γ(K L →π 0 π 0 π 0 ) =(2.81±0.01 stat ±0.02 syst )×10 −3 has been measured.The KS->gamma gamma 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(KS->gamma gamma)=(2.78+-0.06(stat)+-0.04(syst))x10-6, obtained from 7461+-172 KS->gamma gamma events, is significantly higher than the O(p^4) prediction of Chiral Perturbation Theory. Using a KL beam the ratio BR(KL->gamma gamma)/BR(KL->3pi0)=(2.81+-0.01(stat)+-0.02(syst))x10-3 has been measured.hep-ex/0210053CERN-EP-2002-074CERN-EP-2002-074oai:cds.cern.ch:5883042002-10-10 |
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. 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, M. Hirstius, A. Holtz, K. 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. Precise measurements of the $K_{S}\to\gamma\gamma$ and $K_{L}\to\gamma\gamma$ decay rates |
title | Precise measurements of the $K_{S}\to\gamma\gamma$ and $K_{L}\to\gamma\gamma$ decay rates |
title_full | Precise measurements of the $K_{S}\to\gamma\gamma$ and $K_{L}\to\gamma\gamma$ decay rates |
title_fullStr | Precise measurements of the $K_{S}\to\gamma\gamma$ and $K_{L}\to\gamma\gamma$ decay rates |
title_full_unstemmed | Precise measurements of the $K_{S}\to\gamma\gamma$ and $K_{L}\to\gamma\gamma$ decay rates |
title_short | Precise measurements of the $K_{S}\to\gamma\gamma$ and $K_{L}\to\gamma\gamma$ decay rates |
title_sort | precise measurements of the $k_{s}\to\gamma\gamma$ and $k_{l}\to\gamma\gamma$ decay rates |
topic | Particle Physics - Experiment |
url | https://dx.doi.org/10.1016/S0370-2693(02)02955-6 http://cds.cern.ch/record/588304 |
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AT vallageb precisemeasurementsofthekstogammagammaandkltogammagammadecayrates AT holderm precisemeasurementsofthekstogammagammaandkltogammagammadecayrates AT maiera precisemeasurementsofthekstogammagammaandkltogammagammadecayrates AT ziolkowskim precisemeasurementsofthekstogammagammaandkltogammagammadecayrates AT biinoc precisemeasurementsofthekstogammagammaandkltogammagammadecayrates AT cartiglian precisemeasurementsofthekstogammagammaandkltogammagammadecayrates AT marchettof precisemeasurementsofthekstogammagammaandkltogammagammadecayrates AT menichettiezioa precisemeasurementsofthekstogammagammaandkltogammagammadecayrates AT pastronen precisemeasurementsofthekstogammagammaandkltogammagammadecayrates AT nassalskij precisemeasurementsofthekstogammagammaandkltogammagammadecayrates AT rondioe precisemeasurementsofthekstogammagammaandkltogammagammadecayrates AT szleperm precisemeasurementsofthekstogammagammaandkltogammagammadecayrates AT wislickiw precisemeasurementsofthekstogammagammaandkltogammagammadecayrates AT wronkas precisemeasurementsofthekstogammagammaandkltogammagammadecayrates AT dibonh precisemeasurementsofthekstogammagammaandkltogammagammadecayrates AT jeitlerm precisemeasurementsofthekstogammagammaandkltogammagammadecayrates AT markytanm precisemeasurementsofthekstogammagammaandkltogammagammadecayrates AT neuhoferg precisemeasurementsofthekstogammagammaandkltogammagammadecayrates AT pernickam precisemeasurementsofthekstogammagammaandkltogammagammadecayrates AT tauroka precisemeasurementsofthekstogammagammaandkltogammagammadecayrates AT widhalml precisemeasurementsofthekstogammagammaandkltogammagammadecayrates |