Resonance contributions fromχ_(c0)in charmless three-body hadronic B meson decays  

作　　者：张亚兰 王超 林毅 肖振军 Ya-Lan Zhang;Chao Wang;Yi Lin;Zhen-Jun Xiao(Faculty of Mathematics and Physics,Huaiyin Institute of Technology,Huaian 223200,China;Department of Physics and Institute of Theoretical Physics,Nanjing Normal University,Nanjing 210023,China;Jiangsu Key Laboratory for Numerical Simulation of Large Scale Complex Systems,Nanjing Normal University,Nanjing 210023,China)

机构地区：[1]Faculty of Mathematics and Physics,Huaiyin Institute of Technology,Huaian 223200,China [2]Department of Physics and Institute of Theoretical Physics,Nanjing Normal University,Nanjing 210023,China [3]Jiangsu Key Laboratory for Numerical Simulation of Large Scale Complex Systems,Nanjing Normal University,Nanjing 210023,China

出　　处：《Chinese Physics C》2023年第4期148-154,共7页中国物理C（英文版）

基　　金：Supported by the National Natural Science Foundation of China(11235005,11847141,12105112);the Natural Science Foundation of Jiangsu Education Committee(21KJB140027);the Natural Science Foundation of Huaiyin Institute of Technology(21HGZ012)。

摘　　要：Within the framework of perturbative QCD factorization,we investigate the nonfactorizable contributions to the factorization-forbidden quasi-two-body decays B_((s))→h_((χ)_(c0))→hπ^(+)π^(-)(K^(+)K^(-))with h=π,K.We compare our predicted branching ratios for the B_(()(s))→K_(χc0)→Kπ^(+)π-(K^(+)K^(-))decay with available experiment data as well as predictions by other theoretical studies.The branching ratios of these decays are consistent with data and other theoretical predictions.However,in the Cabibbo-suppressed decays B_((s))→h_((χ)_(c0))→hπ^(+)π^(-)(K^(+)K^(-))with h=K^(0),π,the values of the branching ratios are of the order of 10^(-7)and 10^(-8).The ratio R_((χ)_(c0))between the decays B^(+)→π^(+)χ_(c0)→π^(+)π^(+)π^(-)and B^(+)→K^(+)χc0→K^(+)π^(+)π^(-)and the distribution of branching ratios for different decay modes in invariant mass are considered in this study.

关 键 词：three-body B meson decays resonance contributions perturbative QCD factorization approach 

分 类 号：O572.33[理学—粒子物理与原子核物理]