Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2009-11-12
AIP Conf.Proc.1200:936-939,2010
Physics
High Energy Physics
High Energy Physics - Phenomenology
4 pages, based on a talk given at SUSY 09, 5-10 Jun 2009
Scientific paper
10.1063/1.3327767
The supersymmetric finite threshold effects are studied in the presence of non minimal soft terms that can correct the problematic mass ratios of the light generations in the minimal SU(5) GUT. We show that with large soft A-terms, one can achieve simple unification for lighter generations without additional Higgs multiplet, while having sfermions lighter than 1 TeV. The presence of such large A-terms will distort the sfermion mass spectrum upon running from GUT scale down to the electroweak scale making it distinct from the universal SUSY breaking scenarios, especially in the first two generations. The implications of these splittings are studied in K and D meson oscillations and in rare processes D^+ -> pi^+ nu anti-nu and K^+ -> pi^+ nu anti-nu, and in the latter case the effect is found to be important.
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