HADRONIC PENGUIN-B DECAYS IN THE STANDARD AND THE 2-HIGGS-DOUBLET MODELS

We study in next-to-leading order QCD hadronic penguin B decays in the Standard and two-Higgs-doublet models. Although the gluonic penguin dominates, we find the electroweak contribution non-negligible. In the Standard Model, the branching ratio for B --> X(s)phi is predicted to be in the range (0.6-2) x 10(-4). The ranges of branching ratios for B --> Kphi, B --> K* phi, and B(s) --> phiphi are (0.4-2) x 10(-5), (0.2-1) x 10(-5), and (0.15-0.5) x 10(-5), respectively. The contribution from the charged Higgs boson in two Higgs doublet models depend on cot beta, and can be as large as 40%.