The X(4140) and X(4160) resonances in the e^(+)e^(-)→γJ/ψΦ reaction

作     者：En Wang Ju-Jun Xie Li-Sheng Geng Eulogio Oset 王恩;谢聚军;耿立升;Eulogio Oset

作者机构：School of PhysicsZhengzhou UniversityZhengzhouHenan 450001 China 2Institute of Modern PhysicsChinese Academy of SciencesLanzhou 730000 China 3University of Chinese Academy of SciencesBeijing 101408 China 4School of Physics and Nuclear Energy Engineering and International Research Center for Nuclei and Particles in the CosmosBeihang UniversityBeijing 100191 China 5Departamento de Física Teórica and IFICCentro Mixto Universidad de Valencia-CSIC Institutos de Investigación de PaternaAptdo.2208546071 ValenciaSpain 

出 版 物：《Chinese Physics C》 (中国物理C（英文版）)

年 卷 期：2019年第43卷第11期

页      面：11-20页

核心收录：

学科分类：07[理学] 070202[理学-粒子物理与原子核物理] 0702[理学-物理学] 

基　　金：Partly supported by the National Natural Science Foundation of China(11735003,11522539,11505158,11475015,11647601) supported by the Youth Innovation Promotion Association CAS(2016367) Key Research Projects of Henan Higher Education Institutions(20A140027) the Academic Improvement Project of Zhengzhou University partly supported by the Spanish Ministerio de Economia y Competitividad and European FEDER funds under the contract number FIS2014-57026-REDT,FIS2014-51948-C2-1-P,and FIS2014-51948-C2-2-P the Generalitat Valenciana in the program Prometeo Ⅱ2014/068 the proyecto Severo Ochoa del IFIC,SEV-2014-0398 

主　　题：ΦX(4140) J/ψΦ scattering heavy flavor hadrons X(4160) 

摘      要：We investigate the J/Ψ? invariant mass distribution in the e^+e^-→γJ/Ψ? reaction at a center-of-mass energy of ■=4.6 GeV measured by the BESⅢ collaboration,which concluded that no significant signals were observed for e^+e^-→γX(4140) because of the low *** show,however,that the J/Ψ? invariant mass distribution is compatible with the existence of the X(4140) state,appearing as a peak,and a strong cusp structure at the D_s~*■threshold,resulting from the molecular nature of the X(4160) state,which provides a substantial contribution to the *** is consistent with our previous analysis of the B^+→J/Ψ?K^+decay measured by the LHCb *** strongly suggest further measurements of this process with more statistics to clarify the nature of the X(4140) and X(4160) resonances.