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arXiv 1208.5484hep-phastro-ph.COhep-ex
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Z'和重力联合作用下的反转有效SUSY和μ子反常磁矩

Inverted effective SUSY with combined Z' and gravity mediation, and muon anomalous magnetic moment

Jihn E. Kim

摘要:

有效超对称性(SUSY)的停止是最轻的夸克可能会遇到一个双圈快子问题,在某些Z'调解模型。此外,一个大的A项或/和一个大的停止质量需要有一个大约126 GeV的希格斯玻色子玻色子与三个家庭的夸克和轻子。因此,我们建议一个倒置的有效超对称性(IeffSUSY),其中停止质量是较大的前两个家庭相比。在这种情况下,有可能对μ子的反常磁矩进行显著的校正。研究了Z'介导情形下的三族IeffSUSY,其中Z'量子数与B-L有关.在这里,我们采用了Z'调解和引力调解,其中Z'调解是主要的停止,而引力调解是主要的μ轻子和希格斯多重态。我们提出了一个具体的异常自由模型的基础上的数值研究,并显示存在的参数区域,所有的唯象条件得到满足。

英文摘要:

Effective supersymmetry(SUSY) where stop is the lightest squark may run into a two-loop tachyonic problem in some Z' mediation models. In addition, a large A term or/and a large stop mass are needed to have about a 126 GeV Higgs boson with three families of quarks and leptons. Thus, we suggest an inverted effective SUSY(IeffSUSY) where stop mass is larger compared to those of the first two families. In this case, it is possible to have a significant correction to the anomalous magnetic moment of muon. A three family IeffSUSY in a Z' mediation scenario is explicitly studied with the Z' quantum number related to B-L. Here, we adopt both the Z' mediation and gravity mediation where the Z' mediation is the dominant one for stop, while the gravity mediation is the dominant one for the muonic leptons and Higgs multiplets. We present a numerical study based on a specific anomaly free model, and show the existence of the parameter region where all the phenomenological conditions are satisfied.

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