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

Abstract

In the two-quark model supposition for K0*(1430), the branching ratios and the direct CP-violating asymmetries for decays are studied by employing the perturbative QCD factorization approach. We find that although these two decays are both tree-dominated, the ratio of their penguin to tree contributions is very different: there is only a few percent for the decay , while about 37% in scenario I, even 51% in scenario II for the decay . It results that these two decays have very different values in the branching ratios and the direct CP asymmetries. The branching ratio of the decay is at the order of 10−5, and its direct CP asymmetry is about (20–30)%, whereas for the decay its direct CP-violating asymmetry is very large and about 90%, but difficult to measure because the branching ratio for this channel is small and only 10−7 order.