QCD corrections to b → sλ decay in the two-Higgs doublet model Original Research Article

We give a more complete calculation of b → sλ decay in the two-Higgs doublet model, including leading log QCD corrections from mtop to MW in addition to corrections from MW to mb. The inclusive decay rate in the first model is found to be suppressed by 23% compared with the calculations without the QCD running from mtop to MW, and an enhancement up to 5% is found in calculations of the second model. More strict restrictions to the parameters of two-Higgs doublet model II are found.