We present measurements of the branching fraction and time-dependent CP asymmetries in B-0 -> J/psi pi(0) decays based on (231.8 +/- 2.6)x10(6) Upsilon(4S)-> B (B) over bar decays collected with the BABAR detector at the SLAC PEP-II asymmetric-energy B factory. We obtain a branching fraction B(B-0 -> J/psi pi(0))=(1.94 +/- 0.22(stat)+/- 0.17(syst))x10(-5). We also measure the CP asymmetry parameters C=-0.21 +/- 0.26(stat)+/- 0.06(syst) and S=-0.68 +/- 0.30(stat)+/- 0.04(syst).

Measurements of the branching fraction and time-dependent CP asymmetries of B-0 -> J/psi pi(0) decays

ANDREOTTI, Mirco;CALABRESE, Roberto;CIBINETTO, Gianluigi;LUPPI, Eleonora;NEGRINI, Matteo;
2006

Abstract

We present measurements of the branching fraction and time-dependent CP asymmetries in B-0 -> J/psi pi(0) decays based on (231.8 +/- 2.6)x10(6) Upsilon(4S)-> B (B) over bar decays collected with the BABAR detector at the SLAC PEP-II asymmetric-energy B factory. We obtain a branching fraction B(B-0 -> J/psi pi(0))=(1.94 +/- 0.22(stat)+/- 0.17(syst))x10(-5). We also measure the CP asymmetry parameters C=-0.21 +/- 0.26(stat)+/- 0.06(syst) and S=-0.68 +/- 0.30(stat)+/- 0.04(syst).
2006
Aubert, B; Barate, R; Boutigny, D; Couderc, F; Karyotakis, Y; Lees, Jp; Poireau, V; Tisserand, V; Zghiche, A; Grauges, E; Palano, A; Pappagallo, M; Ch...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11392/470186
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