Constraints on Light Bottom Squarks from Radiative B-Meson Decays
Thomas Becher, Stephan Braig, Matthias Neubert, Alexander L. Kagan
Abstract
The presence of a light b-squark (with mass about 4 GeV) and gluino (with mass about 15 GeV) might explain the observed excess in b-quark production at the Tevatron. Though provocative, this model is not excluded by present data. The light supersymmetric particles can induce large flavor-changing effects in radiative decays of B mesons. We analyse the decays B->Xs gamma and B->Xsg in this scenario and derive restrictive bounds on the flavor-changing quark-squark-gluino couplings.
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