Solving the mu problem in gauge mediated supersymmetry breaking models with flavor symmetry

2001/01/05 by K. S. Babu, Babu, K. S., Yukihiro Mimura +1
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #hep-ph

paper · pdf · doi:10.48550/arxiv.hep-ph/0101046

12 pages in LaTeX

arxiv created 2001/01/05 · arxiv updated 2009/11/30

Abstract

We suggest a solution to the μproblem of gauge mediated supersymmtery breaking models based on flavor symmetries. In this scenario the μterm arises through the vacuum expectation value of a singlet scalar field which is suppressed by a flavor symmetry factor relative to the scale of dynamical SUSY breaking. The same flavor symmetry also ensures that the soft SUSY breaking parameter Bμis not much larger than μ², a necessary condition for the stability of electroweak symmetry breaking. Explicit examples where Bμ~ μ² and Bμ<< μ² are presented. The latter case provides a natural solution to the supersymmetric CP problem. We show that the same flavor symmetry that suppresses the μand the Bμparameters can also play a role in explaining the fermion mass and mixing hierarchy puzzle.

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