arXivDaily arXiv每日学术速递 周一至周五更新
北美退伍军人节(Veterans Day),12 日无更新
arXiv 1706.06100hep-ph
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$R_{K^{(*)}}$的风味$Z'$模型

Flavourful $Z'$ models for $R_{K^{(*)}}$

Stephen F. King

摘要:

我们展示了如何通过引入夸克和轻子的质量混合与非通用的$Z'$耦合的第四类矢量费米子家族,使任何味道守恒的$Z'$模型成为味道违反和非通用的。在开发了一个一般的形式主义,我们专注于两个具体的例子,即一个费米模型,和$SO(10)$大统一体模型,并显示它们如何可以解释异常的$B$衰变比$R_K$和$R_{K^*}$。可以对$B-L$模型、$E_6$模型、复合模型等执行类似的分析。

英文摘要:

We show how any flavour conserving $Z'$ model can be made flavour violating and non-universal by introducing mass mixing of quarks and leptons with a fourth family of vector-like fermions with non-universal $Z'$ couplings. After developing a general formalism, we focus on two concrete examples, namely a fermiophobic model, and an $SO(10)$ GUT model, and show how they can account for the anomalous $B$ decay ratios $R_K$ and $R_{K^*}$. A similar analysis could be performed for $B-L$ models, $E_6$ models, composite models, and so on.

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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