Dissociation cross sections ofψ(3770),ψ(4040),ψ(4160),andψ(4415)mesons with nucleons  

作　　者：Ruo-Qing Ding Xiao-Ming Xu H J Weber 

机构地区：[1]Department of Physics,Shanghai University,Baoshan,Shanghai 200444,China [2]Department of Physics,University of Virginia,Charlottesville,VA 22904,United States of America

出　　处：《Communications in Theoretical Physics》2024年第4期93-112,共20页理论物理通讯（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：We study the dissociation of ψ(3770), ψ(4040), ψ(4160), and ψ(4415) mesons in collision with nucleons, which takes place in high-energy proton-nucleus collisions. The quark interchange between a nucleon and a ■ meson leads to the dissociation of the ■ meson. We consider the reactions:■, and■, where R stands for ψ(3770), ψ(4040), ψ(4160), or ψ(4415). A reaction of a neutron and a ■ meson corresponds to a reaction of a proton and the ■ meson by replacing the up quark with the down quark and vice versa. Transition-amplitude formulas are derived from the S-matrix element.Unpolarized cross sections are calculated with the transition amplitudes for scattering in the prior form and in the post form. The cross sections relate to nodes in the radial wave functions of ψ(3770), ψ(4040), ψ(4160), and ψ(4415) mesons.

关 键 词：inelastic nucleon-charmonium scattering quark interchange relativistic constituent quark potential model 

分 类 号：O572.33[理学—粒子物理与原子核物理]