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Exclusive Rare Decay $B\rightarrow K^{\ast}γ$

Patrick J. O'Donnell·Humphrey K. K. Tung
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Abstract

We show that the exclusive decay $B\rightarrow K^{\ast}γ$ can be related to the semileptonic decay $B\rightarrowρe\barν$ using heavy-quark symmetry and $SU(3)$ flavor symmetry. A direct measurement of the $q^{2}$-spectrum for the semileptonic decay can provide relevant information for the exclusive rare decay.

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Patrick J. O'Donnell, Humphrey K. K. Tung. 1992-09-17. Exclusive Rare Decay $B\rightarrow K^{\ast}γ$. https://arxiv.org/abs/hep-ph/9209249

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