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arXiv 1101.0134hep-phhep-ex
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精确测量伽马的案例

The case for measuring gamma precisely

Jure Zupan

摘要:

我们首先回顾了CKM 2008之后出现的确定B->D K衰变γ的方法。然后,我们讨论了伽玛提取的理论误差。由于忽略D-Dbar和B_{d,s} - Bbar_{d,s}混合而导致的误差可以通过在拟合中包括它们的影响来避免。最后的理论误差由电弱修正给出,我们估计其位移为δ γ/γ O(10^-6)。

英文摘要:

We first review the methods for determining gamma from B->D K decays that appeared after CKM 2008. We then discuss the theoretical errors in gamma extraction. The errors due to neglected D-Dbar and B_{d,s}-Bbar_{d,s} mixing can be avoided by including their effects in the fits. The ultimate theoretical error is then given by electroweak corrections that we estimate to give a shift delta gamma/gamma O(10^-6).

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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