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arXiv 1608.01650hep-ph
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族规范玻色子模型中的μ子-电子转换

Muon-Electron Conversion in a Family Gauge Boson Model

Yoshio Koide, Masato Yamanaka

摘要:

在$U(3)$ FGB模型中,研究了μ原子中通过族规范玻色子(FGB)$A_{2}^{\ 1}$交换的$μ$ - $e$转换。在FGB模型类中,我们考虑了夸克的三种族数分配。我们对不同靶核的$μ$ - $e$转换率进行了评估,发现下一代$μ$ - $e$转换搜索实验可以覆盖模型的全部能量标度,适用于所有类型的夸克族数指定.我们表明,该模型中的转换率对上夸克和下夸克混合矩阵$U^{u}$和$U^{d}$非常敏感,其中CKM矩阵由$V_\text{CKM} = U^{u\dagger} U^d$给出。精确测量各种靶核的转换率不仅可以识别夸克族数分配的类型,而且可以单独识别每个夸克混合矩阵。

英文摘要:

We study the $μ$-$e$ conversion in muonic atoms via an exchange of family gauge boson (FGB) $A_{2}^{\ 1}$ in a $U(3)$ FGB model. Within the class of FGB model, we consider three types of family-number assignments for quarks. We evaluate the $μ$-$e$ conversion rate for various target nuclei, and find that next generation $μ$-$e$ conversion search experiments can cover entire energy scale of the model for all of types of the quark family-number assignments. We show that the conversion rate in the model is so sensitive to up- and down-quark mixing matrices, $U^{u}$ and $U^{d}$, where the CKM matrix is given by $V_\text{CKM} = U^{u\dagger} U^d$. Precise measurements of conversion rates for various target nuclei can identify not only the types of quark family-number assignments, but also each quark mixing matrix individually.

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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