On Yukawa quasi-unification with mu<0

Details On Yukawa quasi-unification with mu<0 On Yukawa quasi-unification with mu<0

2003-01-10

arxiv.org/abs/hep-ph/0301064v1

Phys.Rev.D67:097701,2003

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages including 3 figures, Revtex

Scientific paper

10.1103/PhysRevD.67.097701

Although recent data on the muon anomalous magnetic moment strongly disfavor the constrained minimal supersymmetric standard model with mu<0, they cannot exclude it because of theoretical ambiguities. We consider this model supplemented by a Yukawa quasi-unification condition which allows an acceptable b-quark mass. We find that the cosmological upper bound on the lightest sparticle relic abundance is incompatible with the data on the branching ratio of b-->s gamma, which is evaluated by including all the next-to-leading order corrections. Thus, this scheme is not viable.

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