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arXiv 1909.00726hep-ph
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具有CP破坏和重SUSY粒子的MSSM中的希格斯玻色子质量和混合

Higgs-Boson Masses and Mixings in the MSSM with CP Violation and Heavy SUSY Particles

Nick Murphy, Heidi Rzehak

摘要:

我们计算了最小超对称标准模型中的希格斯玻色子的质量谱和相应的希格斯态混合。我们假设一个质量等级是重超对称粒子和轻希格斯玻色子玻色子。为了研究这种情况下,我们采用了一种有效场论的方法与低能量的两个希格斯双重模型(2HDM),其中两个希格斯双重耦合向上以及向下型费米子。我们进行了一个单圈匹配的MSSM的2HDM和发展的参数,利用两个循环的重整化群方程的低能量标度,考虑到复杂的参数。对于极点质量的计算,我们比较了三种不同的选择:一种适合于大的带电希格斯质量,一种适合于低带电希格斯质量,以及一种在这些场景之间插值的近似。最轻的中性希格斯玻色子的质量的相位依赖性可以是相当大的,即取决于场景的几个GeV的数量级。此外,我们还讨论了中性希格斯玻色子的CP组成。

英文摘要:

We calculate the Higgs-boson mass spectrum and the corresponding mixing of the Higgs states in the Minimal Supersymmetric Standard Model (MSSM). We assume a mass-hierarchy with heavy SUSY particles and light Higgs bosons. To investigate this scenario, we employ an effective-field-theory approach with a low-energy Two-Higgs-Doublet Model (2HDM) where both Higgs doublets couple to up- as well as down-type fermions. We perform a one-loop matching of the MSSM to the 2HDM and evolve the parameters to the low energy scale by exploiting two-loop renormalization group equations, taking the complex parameters into account. For the calculation of the pole mass, we compare three different options: one suitable for large charged Higgs masses, one for low charged Higgs masses, and one approximation that interpolates between these scenarios. The phase dependence of the mass of the lightest neutral Higgs boson can be sizeable, i.e. on the order of a couple of GeV depending on the scenario. In addition, we discuss the CP composition of the neutral Higgs bosons.

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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