Branching ratios and CP-violating asymmetries of B-s -> h(1)h(2) decays inthe general two-Higgs-doublet models - art. no. 014014

Based on the low-energy effective Hamiltonian with generalized factorizatio n, we calculate the new physics contributions to branching ratios and CP-vi olating asymmetries of the charmless hadronic decays B-s-->h(1)h(2) in the standard model and the general two-Higgs-doublet models (models I, II, and III). Within the considered parameter space, we find the following. (a) In models I and II, the new physics corrections are always small in size and w ill be masked by other larger known theoretical uncertainties. (b) In model III. the new physics corrections to the branching ratios of those QCD peng uin-dominated decays (B) over bar (s)-->K(0)eta (() ' ()),K+K-*, etc., are large in size and insensitive to the variations of MH+ and N-c(eff). For tr ee- or electroweak penguin-dominated decay modes, however, the new physics corrections are very small in size. (c) For (B) over bar (s)-->K+K-* and th e other seven decay modes, the branching ratios are at the level of (1-3)x1 0(-5) and will be measurable at future hadron colliders with large b produc tion. (d) Among the studied 39 B-s meson decay modes, seven of them can hav e a CP-violating asymmetry A(CP) larger than 20% in magnitude. The new phys ics corrections are small or moderate in magnitude. (e) Because of its larg e and N-c(eff) stable branching ratio and CP-violating asymmetry, the decay (B) over bar (s)-->K+K-* seems to be the "best" channel to find CP violati on of B-s system through studies of two-body charmless decays of the B-s me son.