The photon spectrum of radiative decays B0→γ+X is calculated in a relativistic treatment. The branching ratio BR (B0→γ+X)=(0.8-8)×10-5 is obtaines. This makes the radiative decays B0→γ+X detectable ast the high luminosity LEP. If the future experimental branching ratio turns out to be of the same order, this will show that B0→γ+X decays are highly suppressed by QCD short-distance corrections. Comparisons of this result with other groups' are also provided.
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