LATTICE CALCULATION OF THE DECAYS B-]K-ASTERISK-]PHI+GAMMA(GAMMA AND B(S))

A lattice calculation of the form factors that determine the ''hadroni zation ratios,'' such as R(K) and R(phi), where R(K)*=[GAMMA(B --> K* gamma)/GAMMA(b --> sgamma)], is presented in the quenched approximati on. Lattice data shows strong evidence for the scaling law suggested b y heavy quark symmetry for one of the form factors (i.e., T2). The dat a also gives strong support for the simple pole ansatz for the q2 depe ndence of T2 in the range of available q2. We thus find T2(0) = 0.10 /- 0.01 +/- 0.03, yielding R(K) = (6.0 +/- 1.2 +/- 3.4)%, we also fin d R(phi) = (6.6 +/- 1.3 +/- 3.7)%.