The exclusive rare decay b->s gamma of heavy b-Baryons

الأصل · EN

We present an analysis on the exclusive rare radiative decay modes Sigmab->Sigma gamma and Xib->Xi gamma. The transition form factors which parameterize these processes are calculated using QCD light-cone sum rules. The decay widths we predict are Gamma(Sigmab->Sigma gamma)=(7.21±0.04)×10⁻¹⁸GeV and Gamma(Xib->Xi gamma)=(1.34±0.07)×10⁻¹⁶GeV. The Branching ratio of Xib->Xi gamma is predicted to be Br(Ξb->Xi gamma)=(3.03±0.10)×10⁻⁴.