Direct CP violation in hadronic B decays  

作　　者：HONG Bihai1,2 & Lü Caidian3 1. Department of Physics, Lishui University, Lishui 323000,China 2. Department of Physics, Shanghai Jiaotong University, Shanghai 200030, China 3. Institute of High Energy Physics, Beijing 100049,China 

出　　处：《Science China(Physics,Mechanics & Astronomy)》2006年第3期357-366,共10页中国科学：物理学、力学、天文学（英文版）

基　　金：This work was suported by the National Natural Science Foundation of China (Grant Nos. 90103013, 10475085, 10135060).

摘　　要：There are different approaches for the hadronic B decay calculations, recently. In this paper, we upgrade three of them, namely factorization, QCD factorization and the perturbative QCD approach based on kT factorization, using new parameters and full wave functions. Although they get similar results for many of the branching ratios, the direct CP asymmetries predicted by them are different, which can be tested by recent experimental measurements of B factories.There are different approaches for the hadronic B decay calculations, recently. In this paper, we upgrade three of them, namely factorization, QCD factorization and the perturbative QCD approach based on kT factorization, using new parameters and full wave functions. Although they get similar results for many of the branching ratios, the direct CP asymmetries predicted by them are different, which can be tested by recent experimental measurements of B factories.

关 键 词：CP violation hadronic B decay factorization. 

分 类 号：O572.2[理学—粒子物理与原子核物理]