Production of ψ(4040),ψ(4160),and ψ,(4415)mesons in strong interactions  

作　　者：Sheng-Nan Xu Xiao-Ming Xu 徐胜男;许晓明(Department of Physics,Shanghai University,Shanghai 200444,China)

机构地区：[1]Department of Physics,Shanghai University,Shanghai 200444,China

出　　处：《Chinese Physics C》2025年第2期117-136,共20页中国物理C(英文版)

基　　金：Supported by the project STRONG-2020 of the European Center for Theoretical Studies in Nuclear Physics and Related Areas。

摘　　要：Using the inelastic scattering of charmed strange mesons by open-charm mesons in hadronic matter produced in Pb-Pb collisions at the Large Hadron Collider,we study the production ofψ(4040),ψ(4160),andψ(4415)mesons.Master rate equations are established for inelastic scattering.The scattering is caused by quark interchange in association with color interactions between all constituent pairs in different mesons.We consider fifty-one reactions between charmed strange and open-charm mesons.Unpolarized cross sections for the reactions are obtained from a temperature-dependent interquark potential.The temperature dependence of the cross sections causes the contributions of the reactions to the production ofψ(4040),ψ(4160),andψ(4415)to change with decreasing temperature during the evolution of hadronic matter.For central Pb-Pb collisions at√snn=5.02TeV,the master rate equations reveal that the number density ofψ(4040)is larger than that ofψ(4160),whose number density is larger than that ofψ(4415).

关 键 词：inelastic meson-meson scattering quark interchange relativistic constituent quark potential model master rate equation 

分 类 号：O572.33[理学—粒子物理与原子核物理]