Probing with Penguins: A lattice calculation of the branching ratio for some of the exclusive modes of $b\to s\gamma$

K. C. Bowler

We calculate the leading-order matrix element for exclusive decays of $b\to s\gamma$ in the quenched approximation of lattice QCD on a $24^3\times 48$ lattice at $\beta =6.2$, using an O(a)-…