Branching ratios and CP violations of B -> K-0*(1430)K* decays in the perturbative QCD approach

作者：Liu, Xin^*; Xiao, Zhen-Jun; Zou, Zhi-Tian

来源：Physical Review D - Particles, Fields, Gravitation and Cosmology, 2013, 88(9): 094003.

DOI：10.1103/PhysRevD.88.094003

• MESON
• MASSES

We investigate B -> K-0*(1430)K* decays in the perturbative QCD (pQCD) factorization approach, where B denotes B-u, B-d, and B-s mesons, respectively, and the scalar K-0*(1430) is considered as a meson based on the model of the conventional two-quark structure. With the light-cone distribution amplitude of K-0*(1430) defined in two scenarios, namely Scenario 1 and Scenario 2, we make the first estimation for the branching ratios and CP-violating asymmetries for those concerned decay modes in the pQCD factorization approach. For all considered B -> K-0*(1430)K* decays in this paper, only one preliminary upper limit on the branching ratio of B-0 -> K-0*(1430)(0)(K) over bar*(0) measured at 90% C. L. by the Belle Collaboration is available now. It is therefore of great interest to examine the predicted physical quantities at two B factories, the Large Hadron Collider experiments, and the forthcoming Super-B facility, and then to test the reliability of the pQCD approach employed to study the considered decay modes involving a p-wave scalar meson as one of the final state mesons. Furthermore, these pQCD predictions combined with the future precision measurements are also helpful to explore the complicated QCD dynamics involved in the light scalars.

• 出版日期2013-11-11
• 单位南京师范大学; 烟台大学