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A lattice calculation of the branching ratio for $\overline{B} \rightarrow K^* γ$

Hugh Shanahan·UKQCD Collaboration
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Abstract

Preliminary results are presented on the calculation of the relevant form factor for the radiative decay $\overline{B} \rightarrow K^* γ$ We find that the form factor is weakly dependent on the spectator quark mass. We compare the results obtained for a full chiral extrapolation and where this independence is assumed. Both results are found to be statistically consistent with the experimental data.

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Hugh Shanahan, UKQCD Collaboration. 1993-11-24. A lattice calculation of the branching ratio for $\overline{B} \rightarrow K^* γ$. https://arxiv.org/abs/hep-lat/9311039

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