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

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

1992-09-17

arxiv.org/abs/hep-ph/9209249v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

7 pages, UTPT-92-12, IP-ASTP-14, REVTEX

Scientific paper

We show that the exclusive decay $B\rightarrow K^{\ast}\gamma$ can be related
to the semileptonic decay $B\rightarrow\rho e\bar{\nu}$ 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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