Cross sections for inelastic K+ϕscattering  

作　　者：潘奕豪 许晓明 Yi-Hao Pan;Xiao-Ming Xu(Department of Physics,Shanghai University,Baoshan,Shanghai 200444,China)

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

出　　处：《Chinese Physics C》2023年第8期54-63,共10页中国物理C（英文版）

基　　金：Supported by the National Natural Science Foundation of China(11175111)。

摘　　要：In the first Born approximation,we study the reactions Kφ→πK,ρK,πK*,and ρK*with quark-antiquark annihilation and creation.Transition amplitudes are derived with the development in the spherical harmonics of the relative-motion wave functions of two initial mesons and two final mesons so that parity is conserved and the total angular momentum of the final mesons equals that of the initial mesons.Unpolarized cross sections are calculated from the transition amplitudes that also contain mesonic quark-antiquark relative-motion wave functions and transition potentials for quark-antiquark annihilation and creation.The notable temperature dependence of the cross sections is shown.The cross sections for Kφ→ρK,Kφ→K*,and Kφ→ρK*may be of the millibarn scale,whereas the cross section for Kφ→πK is small.

关 键 词：meson-meson scattering quark-antiquark annihilation and creation quark potential model 

分 类 号：O572.33[理学—粒子物理与原子核物理]