Charge and color breaking minima and constraints on the MSSM parameters

Details Charge and color breaking minima and constraints on the MSSM parameters Charge and color breaking minima and constraints on the MSSM parameters

1996-04-27

arxiv.org/abs/hep-ph/9604417v3

Nucl.Phys.B482:24-38,1996

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages with all figures included. Final published version with more detailed discussion of tunneling rates. All files are al

Scientific paper

10.1016/S0550-3213(96)00554-8

The MSSM potential can have unphysical minima deeper than the physically acceptable one. We point out that their presence is quite generic in SO(10) unification with supergravity mediated soft terms. However, at least for moderate values of tan\beta, the physically acceptable vacuum has a life-time longer than the universe age. Furthermore, by discussing the evolution of the universe in an inflationary scenario, we show that the correct vacuum is the natural expectation. This is not the tendency in more general cases. Even in the SO(10) case, the weak assumptions necessary for this may prevent to use the \tilde\nu h^u direction for baryogenesis a la Affleck-Dine.

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