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arXiv 2009.07037hep-exhep-ph
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美与魅强子衰变中的直接CP破坏

Direct CP violation in beauty and charm hadron decays

Ignacio Bediaga, Carla Göbel

摘要:

自从50多年前发现CP破坏以来,这种现象仍然引起了人们的兴趣。在这个问题的许多迷人的方面,这篇评论致力于在非轻子衰变的直接CP破坏。在过去的十年里,由于b-和c-强子衰变的样本越来越大,这方面的进展是巨大的,并导致了非常有趣的结果,如无粲B衰变中的大CP不对称性和粲扇区中直接CP破坏的观察。我们解决了寻求理解强相位的起源,最终状态相互作用的重要性和CPT对称性的关系,以及不同的方法来衡量直接CP破坏在这些衰变。主要的实验结果和它们的影响进行了讨论。

英文摘要:

Since the discovery of CP violation more than 5 decades ago, this phenomenon is still attracting a lot of interest. Among the many fascinating aspects of this subject, this review is dedicated to direct CP violation in non-leptonic decays. The advances within the last decade have been enormous, driven by the increasingly large samples of b- and c-hadron decays, and have led to very interesting results such as large CP asymmetries in charmless B decays and the observation of direct CP violation in the charm sector. We address the quest for understanding the origin of strong phases, the importance of final state interactions and the relation with CPT symmetry, and different approaches to measure direct CP violation in these decays. The main experimental results and their implications are then discussed.

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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