Abstract
The new CLEO measurement B(bs)<5.4×10-4 puts severe constraints on the parameters of the two-Higgs-doublet model. We find that mH+>320 GeV (540 GeV) for mt=120 GeV (150 GeV). This new measurement implies that the planned rare kaon decay experiments will be insensitive to the charged Higgs boson. © 1993 The American Physical Society.