A new measurement of direct CP violation in two pion decays of the neutral kaon

The NA48 experiment at CERN has performed a new measurement of direct CP violation, based on data taken in 1997 by simultaneously collecting $K_{L}$ and $K_{S}$ decays into $\pi^{0}\pi^{0}$ and $\pi^{+}\pi^{-}$. The result for the CP violating parameter $\Re(\epsilon'/\epsilon)$ is $(18.5 \pm 4...

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Detalles Bibliográficos
Autores principales: Fanti, V., Lai, A., Marras, D., Musa, L., Bevan, A.J., Gershon, T.J., Hay, B., Moore, R.W., Moore, K.N., Munday, D.J., Needham, M.D., Parker, Michael Andrew, Takach, S.F., White, T.O., Wotton, S.A., Barr, G., Blumer, H., Bocquet, G., Bremer, J., Ceccucci, A., Cogan, J., Cundy, D., Doble, N., Funk, W., Gatignon, L., Gianoli, A., Gonidec, A., Govi, G., Grafstrom, P., Kesseler, G., Kubischta, W., Lacourt, A., Luitz, S., Matheys, J.P., Norton, A., Palestini, S., Panzer-Steindel, B., Peyaud, B., Schinzel, D., Taureg, H., Velasco, M., Vossnack, O., Wahl, Heinrich, Wirrer, G., Gaponenko, A., Kekelidze, V., Madigozhin, D., Mestvirishvili, A., Potrebenikov, Yu., Tatishvili, G., Tkatchev, A., Zinchenko, A., Bertolotto, L., Boyle, O., Knowles, I.G., Martin, V.J., Parsons, H.L.C., Peach, K.J., Talamonti, C., Contalbrigo, M., Dalpiaz, P., Duclos, J., Formica, A., Frabetti, P.L., Martini, M., Petrucci, F., Savrie, M., Bizzeti, A., Calvetti, M., Collazuol, G., Graziani, G., Iacopini, E., Lenti, M., Michetti, A., Becker, H.G., Buchholz, P., Coward, D.H., Ebersberger, C., Fox, H., Kalter, A., Kleinknecht, K., Koch, U., Kopke, L., Renk, B., Scheidt, J., Schmidt, J., Schonharting, V., Schue, Y., Wilhelm, R., Wittgen, M., Chollet, J.C., Crepe-Renaudin, Sabine, Fayard, L., Iconomidou-Fayard, L., Ocariz, J., Unal, G., Vattolo, D., Wingerter-Seez, I., Anzivino, G., Bordacchini, F., Cenci, P., Lubrano, P., Nappi, A., Pepe, M., Punturo, M., Bertanza, L., Bigi, A., Calafiura, P., Carosi, R., Casali, R., Cerri, C., Cirilli, M., Costantini, F., Fantechi, R., Giudici, S., Gorini, B., Mannelli, I., Marzulli, V., Pierazzini, G., Raffaelli, F., Sozzi, M., Cheze, J.B., De Beer, M., Debu, P., Granier de Cassagnac, R., Hristov, P., Mazzucato, E., Schanne, S., Turlay, R., Vallage, B., Augustin, I., Bender, M., Holder, M., Ziolkowski, M., Arcidiacono, R., Biino, C., Cester, R., Marchetto, F., Menichetti, Ezio A., Pastrone, N., Nassalski, J., Rondio, E., Szleper, M., Wislicki, W., Wronka, S., Dibon, H., Fischer, G., Jeitler, M., Markytan, M., Mikulec, I., Neuhofer, G., Pernicka, M., Taurok, A.
Lenguaje:eng
Publicado: 1999
Materias:
Particle Physics - Experiment
Acceso en línea:https://dx.doi.org/10.1016/S0370-2693(99)01030-8
http://cds.cern.ch/record/397884
Descripción
Sumario:The NA48 experiment at CERN has performed a new measurement of direct CP violation, based on data taken in 1997 by simultaneously collecting $K_{L}$ and $K_{S}$ decays into $\pi^{0}\pi^{0}$ and $\pi^{+}\pi^{-}$. The result for the CP violating parameter $\Re(\epsilon'/\epsilon)$ is $(18.5 \pm 4.5_{(stat)} \pm 5.8_{(syst)}) \times10^{-4}$.

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