Beauty-charm meson family with coupled channel effects and their strong decays  

作　　者：Wei Hao Ruilin Zhu 郝伟;朱瑞林(School of Physics,Nankai University,Tianjin 300071,China;Department of Physics and Institute of Theoretical Physics,Nanjing Normal University,Nanjing,Jiangsu 210023,China;Peng Huanwu Innovation Research Center,Institute of Theoretical Physics,Chinese Academy of Sciences,Beijing 100190,China)

机构地区：[1]School of Physics,Nankai University,Tianjin 300071,China [2]Department of Physics and Institute of Theoretical Physics,Nanjing Normal University,Nanjing,Jiangsu 210023,China [3]Peng Huanwu Innovation Research Center,Institute of Theoretical Physics,Chinese Academy of Sciences,Beijing 100190,China

出　　处：《Chinese Physics C》2024年第12期11-19,共9页中国物理C（英文版）

基　　金：Supported by the National Natural Science Foundation of China(12322503,12047503,12075124);the Natural Science Foundation of Jiangsu Province,China(BK20211267)。

摘　　要：We systematically examined the mass spectra and their two-body hadronic decays of the beauty-charm meson family considering coupled channel effects.Our results can effectively explain the observed Bemeson spectrum,and the prediction of the mass spectrum for unobserved beauty-charm mesons can be tested in future experiments.Compared with previous studies,we systematically examine the beauty-charm meson family within the coupled channel components.The 1S state in beauty-charm meson family has few percent of coupled channel component,while the 2S,1P,and 1D states have more than ten percent of coupled channel component.The two-body hadronic decay widths of the 2^(3)P_(2) state is as narrow as 3 MeV.The two-body hadronic decay widths of 3^(1)S_(0),3^(3)S_(1),2^(3)D_(1),2D,2D',and 2^(3)D_(3) are approximately 109,67,60,57,201,and 76 MeV,respectively.Furthermore,the mixing effects between B_(c)(n^(3)L_(L))and B_(c)(n^(1)L_(L))states are discussed.

关 键 词：beauty-charm meson coupled channel effects strong decays 

分 类 号：O572.33[理学—粒子物理与原子核物理]