Potential pollution of the Kπ-puzzle by the isospin-breakingπ^(0)-η-η′mixing effect  

作　　者：Zhen-Hua Zhang 张振华(College of Nuclear Science and Technology,University of South China,Hengyang 421001,China)

机构地区：[1]College of Nuclear Science and Technology,University of South China,Hengyang 421001,China

出　　处：《Chinese Physics C》2022年第9期137-141,共5页中国物理C（英文版）

基　　金：National Natural Science Foundation of China(11705081,12192261)。

摘　　要：The influence of the isospin-breakingπ^(0)-η-η′mixing effect on the CP-asymmetries of B→Kπprocesses is examined for the first time.It is found that this mixing effect presents significant uncertainty for both the CP-asymmetry sum rule of B→Kπprocesses and the CP-asymmetry difference of B+→K+π^(0)and B0→K+π-,potentially obscuring the significance of the Kπ-puzzle.As the correction caused by theπ^(0)-η-η′mixing effect is highly dependent on four strong non-perturbative phases,a definitive conclusion is currently unavailable.

关 键 词：CP violation B meson decay Kπpuzzle Tables(1) 

分 类 号：O572.33[理学—粒子物理与原子核物理]