A complete model of low-scale gauge mediation
A complete model of low-scale gauge mediation
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DOI：
10.1007/jhep03(2013)154
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发表时间：
2012-06
影响因子：
5.4
通讯作者：
N. Craig;S. Knapen;D. Shih;Yue Zhao
中科院分区：
文献类型：
--
作者：
N. Craig;S. Knapen;D. Shih;Yue Zhao
最近有迹象表明，125gev的类似标准模型的希格斯粒子指向了MSSM中的大a项。这对规范中介提出了特殊的挑战，它本身预测了信使尺度上a项的消失。在本文中，我们回顾了在扩展规范中介以获得大a项时出现的一般问题，以及存在的克服这些问题的机制。利用这些机制，我们构建了具有扩展希格斯-信使耦合的低尺度规范中介的弱耦合模型，该模型在信使尺度上产生大的a项和可行的μ/B μ项。我们的模型简单、经济，并且完全实现了弱尺度下的超对称。
Recent signs of a Standard Model-like Higgs at 125 GeV point towards large A-terms in the MSSM. This presents special challenges for gauge mediation, which by itself predicts vanishing A-terms at the messenger scale. In this paper, we review the general problems that arise when extending gauge mediation to achieve large A-terms, and the mechanisms that exist to overcome them. Using these mechanisms, we construct weakly-coupled models of low-scale gauge mediation with extended Higgs-messenger couplings that generate large A-terms at the messenger scale and viable μ/B μ-terms. Our models are simple, economical, and complete realizations of supersymmetry at the weak scale.