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arXiv · 0810.3396

Source of CP Violation for the Baryon Asymmetry of the Universe

George W. S. Hou
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Abstract

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.

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George W. S. Hou. 2008-10-24. Source of CP Violation for the Baryon Asymmetry of the Universe. https://arxiv.org/abs/0810.3396

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