Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2004-02-09
Physics
High Energy Physics
High Energy Physics - Phenomenology
4 pages, 3 figures, talk presented by Tomas Blazek at SUSY 2003: Supersymmetry in the Desert, held at the University of Arizon
Scientific paper
We study the Minimal Supersymmetric Standard Model (MSSM) constrained by unification assuming mSUGRA SUSY breaking. In particular this means that the three gauge couplings are unified at a {\it per cent} level, third generation yukawa couplings are unified at a $10 $% level, and at the unification scale $M_U\approx 10^{16}$ the SUSY breaking masses of squarks and sleptons are universal up to specific D-term contributions. At $M_U$ we also include right-handed neutrinos that are decoupled at their three respective scales. In a top-down global analysis we then find that there are two distinct best fits, primarily distinguished by the masses of the non-Standard Model Higgs states, and compute the predictions for flavour violating processes involving both leptons and quarks. The fit with the light Higgs spectrum is especially interesting with regards to the decay $B_s\to \mu^+\mu^-$. We note that the latter results go beyond what is called minimal flavour violation in the MSSM.
Blazek Tomas
King Stephen F.
Parry J. K.
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