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arXiv 1111.5760hep-ph
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Yukawa耦合演化对一般双Higgs偶态模型的约束

Constraining General Two Higgs Doublet Models by the Evolution of Yukawa Couplings

Johan Bijnens, Jie Lu, Johan Rathsman

摘要:

我们研究了一般的两个Higgs二重态模型如何通过考虑它们在汤川耦合的重整化群演化下的性质而被约束。我们考虑到的外观的朗道极点以及非对角汤川耦合导致味道改变中性电流违反实验限制在电弱尺度。我们发现,后者的条件可以用来限制在一个给定的模型中允许的Z2对称性破缺的数量。

英文摘要:

We study how general two Higgs doublet models can be constrained by considering their properties under renormalization group evolution of the Yukawa couplings. We take into account both the appearance of a Landau pole as well as off-diagonal Yukawa couplings leading to flavour changing neutral currents in violation with experimental constraints at the electroweak scale. We find that the latter condition can be used to limit the amount of Z2 symmetry breaking allowed in a given model.

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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