arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1109.4145hep-phastro-ph.COhep-ex
收藏

电弱美容:从b { \to }的CP破坏到宇宙重子不对称性

Electroweak Beautygenesis: From b {\to} s CP-violation to the Cosmic Baryon Asymmetry

Tao Liu, Michael J. Ramsey-Musolf, Jing Shu

摘要:

讨论了$B_s-\bar B_s$混合中的CP破坏可能有助于解释宇宙重子不对称性的起源。我们提出了一个新的重子生成机制-“电弱Beautygenesis”-明确表明,这两个CP违反现象可以来源于一个共同的CP阶段。作为一个例子,我们在双希格斯双重模型中工作。因为相关的CP相位是非对角的,所以这种机制比其他场景更不受电偶极矩搜索的零结果的严格约束。我们展示了如何测量的味道观测的D 0,CDF和LHCb合作测试这种情况。

英文摘要:

We address the possibility that CP-violation in $B_s-\bar B_s$ mixing may help explain the origin of the cosmic baryon asymmetry. We propose a new baryogenesis mechanism - "Electroweak Beautygenesis" - explicitly showing that these two CP-violating phenomena can be sourced by a common CP-phase. As an illustration, we work in the Two-Higgs-Doublet model. Because the relevant CP-phase is flavor off-diagonal, this mechanism is less severely constrained by null results of electric dipole moment searches than other scenarios. We show how measurements of flavor observables by the D0, CDF, and LHCb collaborations test this scenario.

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。

↑