The b -> s gamma decay in supergravity with radiatively electroweak breaking

Details The b -> s gamma decay in supergravity with radiatively electroweak breaking The b -> s gamma decay in supergravity with radiatively electroweak breaking

1993-11-05

arxiv.org/abs/hep-ph/9311228v1

Phys.Lett. B322 (1994) 207-212

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages (plain tex), figures not included, VAND-TH-93-13

Scientific paper

10.1016/0370-2693(94)91108-8

It is analyzed the branching ratio $B(b\rightarrow s\gamma)$ 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 $\tan\beta$.

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