Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2006-08-18
Phys.Rev.D75:015007,2007
Physics
High Energy Physics
High Energy Physics - Phenomenology
21 pages, 4 figures (1 figure added)
Scientific paper
10.1103/PhysRevD.75.015007
The contributions of supersymmetric particles in the isospin symmetry violation in B -> K* gamma decay mode are investigated. The model parameters are adopted from minimal Supergravity with minimal flavor violation. A complete scan of the mSUGRA parameter space has been performed, using the next to leading supersymmetric contributions to the relevant Wilson coefficients. The results are compared to recent experimental data in order to obtain constraints on the parameter space. We point out that isospin asymmetry can prove to be an interesting observable and imposes severe restrictions on the allowed parameter space, in particular for large values of tan(beta). The constraints obtained with isospin asymmetry also appear as more restricting than the ones from the branching ratio of B -> X_s gamma.
Ahmady Mohammad R.
Mahmoudi Farvah
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