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arXiv 0903.2631hep-ph
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第四代标准模型中包含$b\to s \ell^+ \ell^-$衰变的各种偏振不对称性分析

Analysis of Various Polarization Asymmetries In The Inclusive $b\to s \ell^+ \ell^-$ Decay In The Fourth-Generation Standard Model

V. Bashiry, M. Bayar

摘要:

本文系统地分析了四代夸克标准模型中包含$b \rar s \ell^+ \ell^-$衰变的各种极化不对称性。我们发现,对于$μ$和$τ$通道,各种不对称性对新的混合和夸克质量都很敏感。从SM值的大的偏差。因此,$b \rar s \ell^+ \ell^-$衰变是一个有价值的工具,用于搜索SM以外的物理,特别是在间接搜索第四代夸克($t', b')$)。

英文摘要:

In this study a systematical analysis of various polarization asymmetries in inclusive $b \rar s \ell^+ \ell^-$ decay in the standard model (SM) with four generation of quarks is carried out. We found that the various asymmetries are sensitive to the new mixing and quark masses for both of the $μ$ and $τ$ channels. Sizeable deviations from the SM values are obtained. Hence, $b \rar s \ell^+ \ell^-$ decay is a valuable tool for searching physics beyond the SM, especially in the indirect searches for the fourth-generation of quarks ($t', b')$.

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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