Pure Annihilation Type $B \to K_0^*\pm(1430)K^(*)\mp$ Decays in the Family Non-universal $Z^\prime$ Model

分类： 物理学 >> 核物理学 提交时间： 2016-09-13

Ying Li Dan-Dan Wang Cai-Dian Lu

摘要： By assuming that the scalar meson K∗0(1430) belongs to the first excited states or the lowest lying ground states, we study the pure annihilation-type decays B→K∗±0(1430)K(∗)∓ in the QCD factorization approach. Within the standard model, the branching fractions are at the order of 10−8−10−7, which is possible to be measured in the ongoing LHCb experiment or forthcoming Belle-II experiment. We also study these decays in the family non-universal Z′ model. The results show that if mZ′≈600GeV (ζ=0.02), both the branching fractions and CPasymmetries of B¯¯¯¯0→K∗+0(1430)K− could be changed remarkably, which provides us a place for probing the effect of new physics. These results could be used to constrain the parameters of Z′ model.

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