K puzzle of B meson decays and new physics effects in the general two-Higgs-doublet model

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we calculate the new physics contributions to seven measured decays B → π+ π-, K π and K in the general two-Higgs-doublet model (Model III). Within the considered parameter space, we find that: (a) the CLEO/BaBar measurement of B→ π+ π- decay prefers a small F₀ᵇπ(0): F₀ᵇπ(0)=0.25 ± 0.03; (b) the new physics enhancements to the penguin-dominated B → Kπ and B→ K decays are significant in size, (40-70)% w.r.t the standard model predictions; and (c) the new physics enhancements can boost the branching ratios B(B → K+) and B(B → K⁰) to be consistent with the data within one standard deviation, and hence lead to a simple and plausible new physics interpretation for the K puzzle.