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arXiv 1306.5087hep-ph
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z^素数玻色子对$ b_q^0 - bar b_q^0$系统同号双μ子电荷不对称性的影响

The effect of z^prime boson on same-sign dimuon charge asymmetry in $ b_q^0 - bar b_q^0$ system

S. Sahoo, M. Kumar, D. Banerjee

摘要:

最近由D 0合作组对B系统中同号双μ子电荷不对称性的观测与标准模型的预测有3.9 σ的偏差。然而,最近的LHCb数据的B-s中性介子混合不适应的D 0合作的结果。本文考虑Z '介导的味变中性流在$ B_q^0 - bar B_q^0$(q = d,s)混合中的作用,计算了同号双μ子电荷不对称性.我们发现同号双μ子的电荷不对称性比它的SM预言增强了,并为SM之外的新物理提供了信号

英文摘要:

The recent observation of the same-sign dimuon charge asymmetry in the B system by the D0 collaboration has 3.9 sigma deviation from the standard model prediction. However, the recent LHCb data on B-s neutral-meson mixing do not accommodate the D0 collaboration result. In this paper, considering the effect of Z'-mediated flavour-changing neutral currents in the $ B_q^0 - bar B_q^0$ (q = d, s) mixing, the same-sign dimuon charge asymmetry is calculated. We find the same-sign dimuon charge asymmetry is enhanced from its SM prediction and provides signals for new physics beyond the SM

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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