6533b851fe1ef96bd12aa18d

RESEARCH PRODUCT

Perturbative QCD study of Bs decays to a pseudoscalar meson and a tensor meson

Qin QinQin QinHsiang-nan LiHsiang-nan LiHsiang-nan LiXin YuCai-dian LüZhi-tian Zou

subject

PhysicsPseudoscalarNuclear physicsNuclear and High Energy PhysicsParticle physicsMesonHadronPerturbative QCDCP violationHigh Energy Physics::ExperimentObservableSymmetry breakingPseudoscalar meson

description

We study two-body hadronic B-s -> PT decays, with P(T) being a light pseudoscalar (tensor) meson, in the perturbative QCD approach. The CP-averaged branching ratios and the direct CP asymmetries of the Delta S = 0 modes are predicted, where Delta S is the difference between the strange numbers of final and initial states. We also define and calculate experimental observables for the Delta S = 1 modes under the B-s(0)-(B) over bar (0)(s) mixing, including CP averaged branching ratios, time-integrated CP asymmetries, and the CP observables C-f, D-f and S-f. Results are compared to the B-s -> PV ones in the literature, and to the B -> PT ones, which indicate considerable U-spin symmetry breaking. Our work provides theoretical predictions for the B-s -> PT decays for the first time, some of which will be potentially measurable at future experiments. 0 2014 The Authors. Published by Elsevier B.V.

yearjournalcountryeditionlanguage
2014-05-01Physics Letters B
https://doi.org/10.1016/j.physletb.2014.03.004