Branching Fractions and CP Asymmetries of B -> K-0*(1430)rho(omega) and B -> K-0*(1430)phi Decays in the Family Nonuniversal Z ' Model

作者：Li, Ying^*; Wang, En-Lei; Zhang, Hong-Yan

来源：Advances in High Energy Physics, 2013, 2013: 175287.

DOI：10.1155/2013/175287

• QCD FACTORIZATION
• PERTURBATIVE QCD
• CONSTRAINTS

Within the QCD factorization framework, we investigate the branching fractions and the direct CP asymmetries of decays B -> K-0*(1430)rho(omega) and B -> K-0*(1430)phi under two different scenarios in the standard model and the family nonuniversal Z' model. We find that the annihilation terms play crucial roles in these decays and lead to the major uncertainties. For decays B- -> K-0*(-)(1430)rho(0)(omega), the new Z' boson could change the branching fractions remarkably. However, for other decays, its contribution might be clouded by large uncertainties from annihilations. Unfortunately, neither the standard model nor the Z' model can reproduce all experimental data simultaneously under one certain scenario. We also noted that the direct CP asymmetries of B- -> K-0*(-)(1430)rho(0)(omega) could be used to identify the K-0*(1430) meson and search for the contribution of new Z' boson.

• 出版日期2013
• 单位烟台大学