Measurement of time-dependent CP asymmetry in B0cc¯K(*)0 decays

B. Aubert et al. (BABAR Collaboration)
Phys. Rev. D 79, 072009 – Published 29 April 2009

Abstract

We present updated measurements of time-dependent CP asymmetries in fully reconstructed neutral B decays containing a charmonium meson. The measurements reported here use a data sample of (465±5)×106 Υ(4S)BB¯ decays collected with the BABAR detector at the PEP-II asymmetric energy e+e storage rings operating at the SLAC National Accelerator Laboratory. The time-dependent CP asymmetry parameters measured from JψKS0, JψKL0, ψ(2S)KS0, ηcKS0, χc1KS0, and J/ψK*(892)0 decays are: Cf=0.024±0.020(stat)±0.016(syst) and ηfSf=0.687±0.028(stat)±0.012(syst).

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  • Received 10 February 2009

DOI:https://doi.org/10.1103/PhysRevD.79.072009

©2009 American Physical Society

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Vol. 79, Iss. 7 — 1 April 2009

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