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arXiv 1301.7451hep-ph
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用Yukawa耦合的演化约束一般2HDM

Constraining General 2HDM by the Evolution of Yukawa Couplings

Johan Bijnens, Jie Lu, Johan Rathsman

摘要:

通过在重整化群下将汤川耦合常数演化到高能态,分析了一般双Higgs模型的约束条件。我们认为,外观的朗道极或大的非对角汤川耦合,导致树水平的味道改变中性电流。我们的研究表明,后者的条件可以用来回答有多少$Z_2$对称性破缺可以允许在一个给定的2HDM模型。

英文摘要:

We analysis the constraints of the general two Higgs doublet models via evolving the Yukawa coupling constants to high energy under renormalization group. We consider the appearance of a Landau pole or large off-diagonal Yukawa couplings which cause tree level flavour changing neutral currents. Our study shows the latter condition can be used to answer that how much $Z_2$ symmetry breaking can be allowed in a given 2HDM 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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