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First observation of the $K_{S}\to \pi^{0}\gamma\gamma$ decay

Using the NA48 detector at the CERN SPS, 31 $K_{S}\to \pi^{0}\gamma\gamma$ candidates with an estimated background of $13.7 \pm 3.2$ events have been observed. This first observation leads to a branching ratio of $BR(K_{S}\to \pi^{0}\gamma\gamma)_{z>0.2} = (4.9 \pm 1.6_{stat} \pm 0.9_{syst}) \tim...

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Detalles Bibliográficos
Autores principales: 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., 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., Mikulec, I., Neuhofer, G., Pernicka, M., Taurok, A., Widhalm, L.
Lenguaje:eng
Publicado: 2003
Materias:
Acceso en línea:https://dx.doi.org/10.1016/j.physletb.2003.10.073
http://cds.cern.ch/record/642157
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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.
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.
Mikulec, I.
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.
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.
Mikulec, I.
Neuhofer, G.
Pernicka, M.
Taurok, A.
Widhalm, L.
author_sort Lai, A.
collection CERN
description Using the NA48 detector at the CERN SPS, 31 $K_{S}\to \pi^{0}\gamma\gamma$ candidates with an estimated background of $13.7 \pm 3.2$ events have been observed. This first observation leads to a branching ratio of $BR(K_{S}\to \pi^{0}\gamma\gamma)_{z>0.2} = (4.9 \pm 1.6_{stat} \pm 0.9_{syst}) \times 10^{-8}$ in agreement with Chiral Perturbation theory predictions.
id cern-642157
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2003
record_format invenio
spelling cern-6421572023-08-03T03:41:05Zdoi:10.1016/j.physletb.2003.10.073http://cds.cern.ch/record/642157engLai, 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.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.Mikulec, I.Neuhofer, G.Pernicka, M.Taurok, A.Widhalm, L.First observation of the $K_{S}\to \pi^{0}\gamma\gamma$ decayParticle Physics - ExperimentUsing the NA48 detector at the CERN SPS, 31 $K_{S}\to \pi^{0}\gamma\gamma$ candidates with an estimated background of $13.7 \pm 3.2$ events have been observed. This first observation leads to a branching ratio of $BR(K_{S}\to \pi^{0}\gamma\gamma)_{z>0.2} = (4.9 \pm 1.6_{stat} \pm 0.9_{syst}) \times 10^{-8}$ in agreement with Chiral Perturbation theory predictions.Using the NA48 detector at the CERN SPS, 31 K S → π 0 γγ candidates with an estimated background of 13.7±3.2 events have been observed. This first observation leads to a branching ratio of BR( K S → π 0 γγ ) z >0.2 =(4.9±1.6 stat ±0.9 syst )×10 −8 in agreement with Chiral Perturbation Theory predictions.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 BR(KS->pi0 gamma gamma) = (4.9 +- 1.6(stat) +- 0.9(syst)) x 10^-8 in agreement with Chiral Perturbation theory predictions.hep-ex/0309022CERN-EP-2003-052CERN-EP-2003-052oai:cds.cern.ch:6421572003-08-28
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.
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.
Mikulec, I.
Neuhofer, G.
Pernicka, M.
Taurok, A.
Widhalm, L.
First observation of the $K_{S}\to \pi^{0}\gamma\gamma$ decay
title First observation of the $K_{S}\to \pi^{0}\gamma\gamma$ decay
title_full First observation of the $K_{S}\to \pi^{0}\gamma\gamma$ decay
title_fullStr First observation of the $K_{S}\to \pi^{0}\gamma\gamma$ decay
title_full_unstemmed First observation of the $K_{S}\to \pi^{0}\gamma\gamma$ decay
title_short First observation of the $K_{S}\to \pi^{0}\gamma\gamma$ decay
title_sort first observation of the $k_{s}\to \pi^{0}\gamma\gamma$ decay
topic Particle Physics - Experiment
url https://dx.doi.org/10.1016/j.physletb.2003.10.073
http://cds.cern.ch/record/642157
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