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arXiv 0909.4824hep-phhep-th
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破缺对称中的软项

Soft Terms from Broken Symmetries

Matthew Buican, Zohar Komargodski

摘要:

在超越标准模型(SM)的物理学理论中,可见的扇形场经常在附加的规范对称性下携带量子数。我们可以想象这样一个场景:这些额外的规范对称性在将超对称破缺从一个隐藏扇区传递到超对称标准模型(SSM)中发挥了作用。在本文中,我们提出了一个一般的形式主义研究由此产生的隐藏部门和计算相应的规范介导的软参数。我们发现,一个大类的通用模型具有领先的普遍贡献的软标量质量,只依赖于希格斯的规模,即使该模型是强耦合。作为我们分析的副产品,我们阐明了一般规范调解的关联函数的一些IR方面。我们还讨论了可能的现象学应用。

英文摘要:

In theories of phyiscs beyond the Standard Model (SM), visible sector fields often carry quantum numbers under additional gauge symmetries. One could then imagine a scenario in which these extra gauge symmetries play a role in transmitting supersymmetry breaking from a hidden sector to the Supersymmetric Standard Model (SSM). In this paper we present a general formalism for studying the resulting hidden sectors and calculating the corresponding gauge mediated soft parameters. We find that a large class of generic models features a leading universal contribution to the soft scalar masses that only depends on the scale of Higgsing, even if the model is strongly coupled. As a by-product of our analysis, we elucidate some IR aspects of the correlation functions in General Gauge Mediation. We also discuss possible phenomenological applications.

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