2007/03/31 by Ahmed Ali, Gustav Kramer, Ying Li +4 · 1 citation
Physics and Astronomy · #hep-ph #hep-ex
paper · pdf · doi:10.1103/physrevd.76.074018
published as Phys.Rev.D76:074018,2007 · 70 pages, 7 figures, to appear in Physical Review D; several input parameters modified resulting in changes in several tables and ratios of branching ratios; added references
arxiv created 2007/08/21 · arxiv updated 2009/12/01
We calculate the CP-averaged branching ratios and CP-violating asymmetries of a number of two-body charmless hadronic decays Bs0 → PP, PV, VV in the perturbative QCD (pQCD) approach to leading order in αs (here P and V denote light pseudoscalar and vector mesons, respectively). The mixing-induced CP violation parameters are also calculated for these decays. We also predict the polarization fractions of Bs → VV decays and find that the transverse polarizations are enhanced in some penguin dominated decays such as Bs0 → K *K*, K *ρ. Some of the predictions worked out here can already be confronted with the recently available data from the CDF collaboration on the branching ratios for the decays Bs0 → K+π-, Bs0 → K+K- and the CP-asymmetry in the decay Bs0 → K+π-, and are found to be in agreement within the current errors. A large number of predictions for the branching ratios, CP-asymmetries and vector-meson polarizations in Bs0 decays, presented in this paper and compared with the already existing results in other theoretical frameworks, will be put to stringent experimental tests in forthcoming experiments at Fermilab, LHC and Super B-factories.