Branching ratio and CP violation of B-c -> DK decays in the perturbative QCD approach

作者：Zhang Jun^*; Yu Xian Qiao

来源：European Physical Journal C, 2009, 63(3): 435-442.

DOI：10.1140/epjc/s10052-009-1112-1

In this paper, we calculate the branching ratio and direct CP asymmetry parameter of B-c( /-) -> (DK /-)-K-0 in the framework of a perturbative QCD approach based on k(T) factorization. Besides the usual factorizable diagrams, both nonfactorizable and annihilation type contributions are taken into account. We find that (a) the branching ratio is at the order of 10(-5); (b) the tree annihilat

• 出版日期2009-10
• 单位西南大学