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MSSM with Large tan$β$ Constrained by Minimal SO(10) Unification

T. Blazek
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Abstract

Study of the MSSM in large tan$β$ regime has to include correlations between the constraints presented by the low energy values of the b quark mass and $BR(b\to sγ)$. Both quantities receive SUSY contributions enhanced by tan$β$ and have a major impact on the MSSM analysis. Here we summarize the results of such a study constrained by minimal SO(10) unification. We show the best fits, in the $(m_0,M_{1/2})$ plane, obtained in the global analysis spanned over the gauge, Yukawa and SUSY parameter space at the unification scale. Two distinct fits describe the available low-energy data very well. The fits differ by the overall sign of the $b\to sγ$ decay amplitude. We conclude that an attractive SO(10)-derived regime of the MSSM remains a viable option.

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T. Blazek. 1998-07-17. MSSM with Large tan$β$ Constrained by Minimal SO(10) Unification. https://arxiv.org/abs/hep-ph/9807410

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