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arXiv 0708.3593hep-phhep-th
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规范调解中mu/B_mu问题的隐解

A hidden solution to the mu/B_mu problem in gauge mediation

Tuhin S. Roy, Martin Schmaltz

摘要:

我们提出了规范调解中mu/B_mu问题的解决方案。我们的解决方案的新颖之处在于,它使用了隐藏扇区的动力学,这通常存在于具有动力学超对称性破缺的模型中。我们给出了一个明确的规范中介的示例模型,其中一个非常简单的信使扇区在一个循环中生成mu和B_mu。通常的问题,即B_mu太大,解决了强重整化效应的隐藏部门,抑制B_mu相对于μ。我们的机制依赖于一个假设的迹象,某些不可计算的异常尺寸在隐藏的部门。做出这些假设不仅使我们能够解决mu/B_mu问题,而且还导致了一个特征性的超伙伴光谱,这将是我们机制的确凿证据。

英文摘要:

We propose a solution to the mu/B_mu problem in gauge mediation. The novel feature of our solution is that it uses dynamics of the hidden sector, which is often present in models with dynamical supersymmetry breaking. We give an explicit example model of gauge mediation where a very simple messenger sector generates both mu and B_mu at one loop. The usual problem, that B_mu is then too large, is solved by strong renormalization effects from the hidden sector which suppress B_mu relative to mu. Our mechanism relies on an assumption about the signs of certain incalculable anomalous dimensions in the hidden sector. Making these assumptions not only allows us to solve the mu/B_mu problem but also leads to a characteristic superpartner spectrum which would be a smoking gun signal for our mechanism.

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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