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  • Measurement of the charge a...
    Amhis, Y.; Badalov, A.; Bowcock, T.J.V.; Brambach, T.; Britton, T.; Callot, O.; Cardinale, R.; Cardini, A.; Clemencic, M.; Coombes, M.; Couturier, B.; De Bonis, I.; De Cian, M.; De Silva, W.; De Simone, P.; Di Canto, A.; Dziurda, A.; Egorychev, V.; Ekelhof, R.; Fernandez Albor, V.; Ferreira Rodrigues, F.; Fitzpatrick, C.; Gandelman, M.; Garrido, L.; Gaspar, C.; Giubega, L.; Gordon, H.; Grünberg, O.; Haen, C.; Hamilton, B.; Head, T.; Hennessy, K.; Henrard, P.; Iakovenko, V.; Jawahery, A.; Johnson, D.; Jost, B.; Khanji, B.; Komarov, I.; Korolev, M.; Krokovny, P.; Kudryavtsev, V.; Kurek, K.; Lambert, D.; Lambert, R.W.; Le Gac, R.; Lu, H.; Maev, O.; Märki, R.; Marks, J.; Martynov, A.; Meier, F.; Nakada, T.; Needham, M.; Nikitin, N.; Nomerotski, A.; Oldeman, R.; Oyanguren, A.; Patel, M.; Pavel-Nicorescu, C.; Pearce, A.; Pepe Altarelli, M.; Phan, A.; Pinci, D.; Poluektov, A.; Polycarpo, E.; Popov, A.; Rauschmayr, N.; Rives Molina, V.; Rodriguez Perez, P.; Ruffini, F.; Santacesaria, R.; Schiller, M.; Schindler, H.; Schlupp, M.; Schopper, A.; Sciascia, B.; Serrano, J.; Shapoval, I.; Shekhtman, L.; Souza, D.; Spaan, B.; Sparkes, A.; Swientek, S.; Szumlak, T.; Tobin, M.; Torr, N.; Tsaregorodtsev, A.; Valenti, G.; Velthuis, J.J.; Viaud, B.; Vieira, D.; Wallace, C.; Wang, J.; Ward, D.R.; Williams, M.; Wu, S.; Zavertyaev, M.; Zhang, Y.; Zhelezov, A.

    Physics letters. B, 01/2014, Letnik: 728
    Journal Article

    The CP-violating charge asymmetry in B±→ϕK± decays is measured in a sample of pp collisions at 7 TeV centre-of-mass energy, corresponding to an integrated luminosity of 1.0 fb−1 collected by the LHCb experiment. The result is ACP(B±→ϕK±)=0.022±0.021±0.009, where the first uncertainty is statistical and the second systematic. In addition, a search for the B±→ϕπ± decay mode is performed, using the B±→ϕK± decay rate for normalization. An upper limit on the branching fraction B(B±→ϕπ±)<1.5×10−7 is set at 90% confidence level.