B → X_s γ in minimal supersymmetric standard model with general flavor mixing

2002/11/30 by Ken-ichi Okumura, Okumura, Ken-ichi, Leszek Roszkowski +1
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #hep-ph

paper · pdf · doi:10.48550/arxiv.hep-ph/0212007

8 pages, 14 figures, talk given at the 10th International Conference on Supersymmetry and Unification of Fundamental Interactions (SUSY02) June 17-23, 2002, DESY Hamburg

arxiv created 2002/11/30 · arxiv updated 2009/11/30

Abstract

We present the results of our analysis on b → s γ in the minimal supersymmetric standard model with a general flavor mixing in the squark sector. We identify the next--to--leading order focusing effect, which considerably reduces the gluino contribution to b → s γ relative to the leading order calculation. We illustrate that BR(B → X_s γ) is still very sensitive to the flavor mixing parameters, δ^d_ll and δ^d_lr so that the lower bound for m_1/2 obtained in the minimal flavor violation can be easily removed even at μ<0, while it is rather stable against δ^d_rr and δ^d_rl.

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