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arXiv 1909.00784hep-ph
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具有么正性边界的一般2HDM中的Higgs质量和耦合

Higgs masses and couplings in the general 2HDM with unitarity bounds

D. Jurčiukonis, L. Lavoura

摘要:

我们研究了一般的两个Higgs二重态模型施加的幺正性条件和有界从下面的条件。这两种条件都限制了标势参数的范围。我们在Higgs基中研究了该模型,即在只有一个偶极具有真空期望值的标量偶极的基中。我们使用的实验范围内的倾斜参数T,产生标量粒子的质量和三次和四次耦合的希格斯粒子的现象。数值计算表明,立方耦合可能比标准模型大1.6倍,但它也可能为零,甚至为负。四次耦合始终为正,最多可以比标准模型大四倍。

英文摘要:

We investigate the general two Higgs doublet model imposing both the unitarity conditions and the bounded-from-below conditions. Both types of conditions restrict the ranges of the parameters of the scalar potential. We study the model in the Higgs basis, i.e. in the basis for the scalar doublets where only one doublet has vacuum expectation value. We use the experimental bounds on the oblique parameter T, to produce scalar particles with masses and cubic and quartic couplings of the Higgs in agreement with the phenomenology. The numerical calculations show that the cubic coupling may be up to 1.6 times larger than in the Standard Model, but it may also be zero or even negative. The quartic coupling is always positive and may be up to four times larger than in the Standard 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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