Branching ratio and CP asymmetry of Bs→K*0(1430)η(′) decays in the PQCD approach

Abstract

In the two-quark model supposition for K*0(1430), which can be viewed as either the first excited state (Scenario I) or the lowest lying state (Scenario II), the branching ratios and the direct CP-violating asymmetries for decays are studied by employing the perturbative QCD factorization approach. We find the following results: (a) The CP averaged branching ratios of are small and both in the order of 10−7. If one views K*0(1430) as the lowest lying state, . (b) While the direct CP-violating asymmetries of these two decays are not small: if we still take the parameters of K*0(1430) in scenario II, . (c) The annihilation contributions will play an important role in accounting for future data, because both the branching ratios and the direct CP asymmetries of these two decays are sensitive to the annihilation type contributions.