Search for the Radiative Decays B→ργ and B0→ωγ

2004 
The radiative decays B → ργ and B0 → ωγ were studied. Charge-particle trajectories were measured in both a five-layer silicon vertex tracker (SCT) and 40-layer drift chamber (DCH). A ring-imaging Cherenkov detector (DIRC) was used for charged-particle identification. The 90% C.L. upper limits on the branching fractions are significantly lower than previous values and start to restrict the range indicated by SM predictions.
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