The μ-problem, the NMSSM and string theory

Details The μ-problem, the NMSSM and string theory The μ-problem, the NMSSM and string theory

2010-03-05

arxiv.org/abs/1003.1307v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages, 1 fig. Prepared for the proceedings of the Corfu Summer Institute 2009; v2: references added

Scientific paper

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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