Retrofitting and the mu Problem

Green, Daniel ; Weigand, Timo ; /SLAC /Stanford U., Phys. Dept.

SLAC National Accelerator Laboratory

关键词: Phenomenology-Hep, Theory-Hep,;    Retrofitting;    Instantons;    72 Physics Of Elementary Particles And Fields;    Symmetry Breaking Phenomenology-Hep, Theory-Hep,;   

DOI  :  10.2172/992459
RP-ID  :  SLAC-PUB-13655
RP-ID  :  AC02-76SF00515
RP-ID  :  992459

美国|英语

来源: UNT Digital Library

【 摘 要 】

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}.