arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0908.3434hep-ph
收藏

稀有和辐射K衰变中的长距离效应

Long-distance effects in rare and radiative K decays

Christopher Smith

摘要:

给出了FCNC引起的稀有和辐射K衰变的电弱结构。虽然前者对短距离物理敏感,并为新物理提供了特殊的探针,但后者由长距离物理主导。即便如此,它们也不应该被搁置一边,因为它们构成了控制罕见衰变中发生的强子不确定性的基本成分。这是通过系统地回顾目前使用的唯象策略,干净地预测罕见的K衰变率在标准模型说明。

英文摘要:

The electroweak structures of the FCNC-induced rare and radiative K decays are presented. While the former decays are sensitive to short-distance physics and offer exceptional probes for new physics, the latter are dominated by long-distance physics. Even so, they should not be set aside since they constitute essential ingredients to control the hadronic uncertainties occurring for the rare decays. This is illustrated by systematically reviewing the phenomenological strategies currently in use to cleanly predict the rare K decay rates in the Standard Model.

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。

↑