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arXiv 0810.3396hep-ph
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宇宙重子不对称性的CP破坏源

Source of CP Violation for the Baryon Asymmetry of the Universe

George W. S. Hou

摘要:

如何解释宇宙中物质的主导地位是我们存在的核心问题。一个条件是CP破坏,但标准模型的不足超过$10^{-10}$。从$B$工厂最近的结果中得到线索,我们发现第四代夸克可以提供$10^{13}$或更多的增强因子。这可能是宇宙重子不对称性的CP破坏的来源。增强的主要来源是重夸克$t^\prime$和$b^\prime$的大Yukawa耦合。有迹象表明,一个新的,大CP违反阶段$\sin2Φ_{B_s}$出现在Tevatron,我们的建议可以验证或反驳在大型强子对撞机在未来几年。

英文摘要:

How to account for the matter predominance of our Universe is a fundamental issue at the core of our existence. One condition is CP violation, but the Standard Model falls short by more than $10^{-10}$. Taking cue from a recent result from the $B$ factories, we find that a fourth quark generation can provide enhancement by a factor of $10^{13}$ or more. This could be the source of CP violation for the baryon asymmetry of the Universe. The main source of enhancement is the large Yukawa couplings of the heavy $t^\prime$ and $b^\prime$ quarks. With indications for a new, large CP violating phase $\sin2Φ_{B_s}$ emerging at the Tevatron, our suggestion can be verified or refuted at the LHC in the next few years.

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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