Retrofitting and the mu Problem

Details Retrofitting and the mu Problem Retrofitting and the mu Problem

2009-06-02

arxiv.org/abs/0906.0595v1

Physics

High Energy Physics

High Energy Physics - Theory

26 pages, 2 figures

Scientific paper

One of the challenges of supersymmetry (SUSY) breaking and mediation is generating a mu term consistent with the requirements of electro-weak symmetry breaking. The most common approach to the problem is to generate the mu term through a SUSY breaking F-term. Often these models produce unacceptably large B mu terms as a result. We will present an alternate approach, where the mu term is generated directly by non-perturtative effects. The same non-perturbative effect will also retrofit the model of SUSY breaking in such a way that mu is at the same scale as masses of the Standard Model superpartners. Because the mu term is not directly generated by SUSY breaking effects, there is no associated B mu problem. These results are demonstrated in a toy model where a stringy instanton generates mu.

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