Two-photon exclusive decays $B_s\to \eta ({\eta }^{\prime })\gamma \gamma$ and $B\to K\gamma \gamma$

Abstract

The exclusive decay modes $B\to K\gamma \gamma$ and $B_s\to \eta ({\eta }^{\prime })\gamma \gamma$ are shown to have significant branching ratios of approximately $0.5\times 10^{-7}$. This first calculation of these modes employs a model based on a cascade transition $B\to V\gamma \to P\gamma \gamma$ for estimating the long-distance contribution and the process $b\to s\gamma \gamma$ for the short distance one.

11 Pages

References in corpus (1)

• The B -> X_s gamma gamma rare decay

Cited by in corpus (5)

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• Technicolor corrections on $B_{s,d}\to \gamma \gamma$ decays in QCD factorization
• Study of the Flavour Changing Neutral Current Decay mode $B\to K\gamma \gamma$
• New Physics effects on decay $B_s\to \gamma \gamma$ in Technicolor Model