Abstract
We calculate the leading logarithmic QCD corrections to the decay Bsγγ in the two Higgs doublet model with tree level flavor changing currents (model III) including O7 type long distance effects. Further, we analyze the dependences of the branching ratio B(Bsγγ) and the ratio of CP-even and CP-odd amplitude squares, R=|A+|2/|A|2, on the charged Higgs boson mass mH± and the selected model III parameters ξU,D including the leading logarithmic QCD corrections. It is found that the measurement of the branching ratio B(Bsγγ) is promising to search charged Higgs effects.

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