Charmless non-leptonic B_s decays to PP, PV and VV final states in the pQCD approach

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dc.creatorAli, Ahmed
dc.creatorKramer, Gustav
dc.creatorLi, Ying
dc.creatorLu, Cai-Dian
dc.creatorShen, Yue-Long
dc.creatorWang, Wei
dc.creatorWang, Yu-Ming
dc.date2007-03-15
dc.date2007-08-21
dc.date.accessioned2026-07-07T11:22:49Z
dc.date.available2026-07-07T11:22:49Z
dc.descriptionWe calculate the CP-averaged branching ratios and CP-violating asymmetries of a number of two-body charmless hadronic decays $\bar{B_s^0} \to PP, PV, VV$ in the perturbative QCD (pQCD) approach to leading order in $α_s$ (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 $B_s \to VV$ decays and find that the transverse polarizations are enhanced in some penguin dominated decays such as $\bar{B_s^0} \to K ^{*}\bar{K^{*}}$, $K ^{*}ρ$. 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 $ \bar{B_s^0} \to K^+π^-$, $ \bar{B_s^0} \to K^+K^-$ and the CP-asymmetry in the decay $ \bar{B_s^0} \to 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 $\bar{B_s^0}$ 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.
dc.description70 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
dc.identifierhttps://arxiv.org/abs/hep-ph/0703162
dc.identifierhttp://arxiv.org/abs/hep-ph/0703162
dc.identifierPhys.Rev.D76:074018,2007
dc.identifierdoi:10.1103/PhysRevD.76.074018
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/194702
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectHigh Energy Physics - Experiment
dc.titleCharmless non-leptonic B_s decays to PP, PV and VV final states in the pQCD approach
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