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arXiv 1408.2497hep-phhep-ex
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B衰变中CP破坏研究的新前沿

Towards New Frontiers in CP Violation in B Decays

Robert Fleischer

摘要:

B介子衰变中的CP破坏效应为检验标准模型的夸克味区的相结构提供了一个很宽的探测谱。在对当前LHC数据中出现的图像进行简要讨论之后,重点将放在两个特定的主题上:企鹅拓扑对$B^0_q$ - $\bar B^0_q$混合相($q\in\{d,s\}$)测量的强子不确定性,以及与U自旋相关的衰变$B^0_s\to K^+K^-$和$B^0_d\toπ^+π^-$。对B衰变中的CP破坏的进一步研究具有重要意义。为了检测可能的新的CP破坏源,将实验和理论精度相匹配,并仔细研究潜在的假设是至关重要的。

英文摘要:

CP-violating effects in decays of B mesons offer a wide spectrum of probes for testing the phase structure of the quark-flavour sector of the Standard Model. After a brief discussion of the picture emerging from the current LHC data, the focus will be put on two specific topics: hadronic uncertainties from penguin topologies on measurements of the $B^0_q$-$\bar B^0_q$ mixing phases ($q\in\{d,s\}$), and the U-spin-related decays $B^0_s\to K^+K^-$ and $B^0_d\toπ^+π^-$. Valuable new insights are expected from future studies of CP violation in B decays. For the detection of possible new sources of CP violation, it will be crucial to match the experimental and theoretical precisions and to have a careful look at the underlying assumptions.

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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