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On Yukawa quasi-unification with mu<0

M. E. Gomez·G. Lazarides·C. Pallis
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Abstract

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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M. E. Gomez, G. Lazarides, C. Pallis. 2003-01-10. On Yukawa quasi-unification with mu<0. https://doi.org/10.1103/physrevd.67.097701

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