B→π+π-, Kπ, Kη′ decays and new physics effects in the general two-Higgs-doublet model:: An update -: art. no. 114021

In this paper, we reexamine the new physics contributions to seven well measured B-->PP decays in the standard model (SM) and the general two-Higgs-doublet model (model III) and compare the theoretical predictions with the new data. Within the considered parameter space we find that (a) the measurements of the branching ratios for B-->pi(+)pi(-), K(-)pi(+), and K(0)pi(+) lead to a strong constraint on the form factor F-0(Bpi)(0): F-0(Bpi)(0)=0.24+/-0.03, and (b) the new physics enhancements to the penguin-dominated B-->Kpi and Keta' decays are significant in size, similar to(40-65)% with respect to the SM predictions, and play an important role in restoring the consistency between the data and theory.