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arXiv 1003.1307hep-phhep-th
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μ问题、NMSSM和弦论

The μ-problem, the NMSSM and string theory

Saul Ramos-Sanchez

摘要:

我们讨论了最近的事态发展的所谓的超对称μ问题的解决方案的背景下,杂种优势orbifolds。特别地,近似R对称性可以在具有MSSM谱的Orbifold模型的Minkowski真空中诱导出可容许的μ项。一个自然的解决方案的μ问题也提供了显式字符串派生NMSSM。这些模型有助于避免MSSM的微调。

英文摘要:

We discuss recent developments on the solution of the so-called supersymmetric mu-problem in the context of heterotic orbifolds. In particular, an approximate R symmetry can induce an admissible mu-term in Minkowski vacua of orbifold models with the MSSM spectrum. A natural solution to the mu-problem is also offered by explicit string-derived NMSSMs. These models help avoid the fine-tuning of the MSSM.

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