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arXiv · 1103.0081

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

Yong-lu Liu·Long-fei Gan·Ming-qiu Huang
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Abstract

We present an analysis on the exclusive rare radiative decay modes Sigma_b->Sigma gamma and Xi_b->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(Sigma_b->Sigma gamma)=(7.21\pm0.04)\times10^{-18}GeV} and Gamma(Xi_b->Xi gamma)=(1.34\pm0.07)\times10^{-16}GeV. The Branching ratio of Xi_b->Xi gamma is predicted to be Br(Ξ_b->Xi gamma)=(3.03\pm0.10)\times10^{-4}.

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Yong-lu Liu, Long-fei Gan, Ming-qiu Huang. 2011-03-01. The exclusive rare decay b->s gamma of heavy b-Baryons. https://doi.org/10.1103/physrevd.83.054007

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