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arXiv 1206.6589hep-phhep-ex
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低尺度规范中介模型中的希格斯玻色子质量

Higgs Boson Mass in Low Scale Gauge Mediation Models

Tsutomu T. Yanagida, Norimi Yokozaki, Kazuya Yonekura

摘要:

我们考虑低尺度规范调解模型与一个非常轻的引力子m_{3/2} ~16 eV,在最近的实验提示的希格斯玻色子质量。轻引力子是非常有趣的,因为没有引力子过量产生的问题,但似乎很难解释~125 GeV的希格斯玻色子质量。这是因为产生相对较重的希格斯玻色子玻色子所需的轻引力子质量和重超对称粒子质量之间的冲突。在本文中,我们考虑两种可能的扩展:希格斯部门的单重扩展,和强耦合规范调解。我们表明,有一个大的参数空间,在这两种情况下,希格斯玻色子质量为125 GeV的解释没有任何冲突,这样一个非常轻的引力子。

英文摘要:

We consider low scale gauge mediation models with a very light gravitino m_{3/2}~16 eV, in the light of recent experimental hints on the Higgs boson mass. The light gravitino is very interesting since there is no gravitino over-production problem, but it seems difficult to explain the Higgs boson mass of ~125 GeV. This is because of the conflict between the light gravitino mass and heavy SUSY particle masses needed for producing the relatively heavy Higgs boson mass. We consider two possible extensions in this paper: a singlet extension of the Higgs sector, and strongly coupled gauge mediation. We show that there is a large parameter space, in both scenarios, where the Higgs boson mass of ~125 GeV is explained without any conflict with such a very light gravitino.

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