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We use 772 × 106 BB-bar meson pairs collected at the ?(4S) resonance with the Belle detector to measure the branching fraction for B-bar → Xs?. Our measurement uses a sum-of-exclusives approach in which 38 of the hadronic final states with strangeness equal to +1, denoted by Xs, are reconstructed. The inclusive branching fraction for MXs 2.8 GeV/c2, which corresponds to a minimum photon energy of 1.9 GeV, is measured to be B(B-bar → Xsubs/sub?)=(3.51±0.17±0.33) × 10sup–4
The b → s[gamma] transition proceeds by a loop penguin diagram. It may be used to measure precisely the couplings of the top quark and to search for the effects of any new particles appearing in the loop. We present a preliminary measurement of the branching fraction of the exclusive decay, B° → K*°[gamma]. They use 8.6 x 106 B{bar B} decays to measure B(B° → K*°[gamma]) = (5.4 ± 0.8 ± 0.5) x 10−5.