The b -> s gamma decay in supergravity with radiatively electroweak breaking
Marco Aurelio Diaz
Abstract
It is analyzed the branching ratio B(b→ sγ) in the context of minimal N=1 supergravity with radiatively broken electroweak symmetry group. There is a strong dependence on supersymetric parameters, but constraints on the charged Higgs mass in non-supersymmetric models are relaxed, due to large contribution from the chargino/up-type squark sector that interacts destructively with the Standard Model and the charged Higgs contributions. Large suppressions/enhancements of the branching fraction are found for large values of β.
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