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arXiv 1502.07207hep-ph
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具有Z_4 ^R对称性的MSSM的单态扩张

Singlet extensions of the MSSM with Z_4^R symmetry

Michael Ratz, Patrick K. S. Vaudrevange

摘要:

讨论了具有$\Z4^R$对称性的MSSM的单态扩张。我们表明,全纯零点可以避免一个潜在的大系数的单线性项。新兴的模型有一个有效的μ项和一个超对称的质量项的单重态μ_N,这是由引力子质量控制。mu项被证明相对于mu_N被抑制了大约一个或两个数量级。我们认为,这类模型可能为我们提供了一个解决方案的小层次问题的MSSM。

英文摘要:

We discuss singlet extensions of the MSSM with $\Z4^R$ symmetry. We show that holomorphic zeros can avoid a potentially large coefficient of the term linear in the singlet. The emerging model has both an effective mu term and a supersymmetric mass term for the singlet mu_N which are controlled by the gravitino mass. The mu term turns out to be suppressed against mu_N by about one or two orders of magnitude. We argue that this class of models might provide us with a solution to the little hierarchy problem of the MSSM.

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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