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arXiv 1102.0392hep-ph
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sin 2 β的理论不确定性:更新

Theoretical uncertainty in sin 2beta: An update

Marco Ciuchini, Maurizio Pierini, Luca Silvestrini

摘要:

简要评述了从黄金通道Bd -> J/psi K 0的测量中提取sin 2 β的理论不确定度的来源。基于SU(3)味对称性和衰变Bd -> J/psi pi 0的测量,还提出了这种不确定性的更新估计。

英文摘要:

The source of theoretical uncertainty in the extraction of sin 2beta from the measurement of the golden channel Bd -> J/psi K0 is briefly reviewed. An updated estimate of this uncertainty based on SU(3) flavour symmetry and the measurement of the decay Bd -> J/psi pi0 is also presented.

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