Analysis of the interaction between theφmeson and nucleus  

作　　者：王晓云 董晨 王全进 Xiao-Yun Wang;Chen Dong;Quanjin Wang(Department of physics,Lanzhou University of Technology,Lanzhou 730050,China;Lanzhou Center for Theoretical Physics,Key Laboratory of Theoretical Physics of Gansu Province,Lanzhou University,Lanzhou 730000,China)

机构地区：[1]Department of physics,Lanzhou University of Technology,Lanzhou 730050,China [2]Lanzhou Center for Theoretical Physics,Key Laboratory of Theoretical Physics of Gansu Province,Lanzhou University,Lanzhou 730000,China

出　　处：《Chinese Physics C》2023年第1期185-192,共8页中国物理C（英文版）

基　　金：Supported by the National Natural Science Foundation of China(12065014,12047501);the Natural Science Foundation of Gansu province(22JR5RA266);the West Light Foundation of The Chinese Academy of Sciences(21JR7RA201)。

摘　　要：In this study,we systematically investigate theφmeson and nucleus interaction by analyzing and fitting the cross sections ofγN→φN reactions near the threshold,where N represents the nucleus.Using the vector meson dominant model,the distribution of theφ-N scattering length is presented as a function of energy,and the results show that there is a slight increase in scattering length with increasing energy.Based on this,the average scattering length of aφ-proton is obtained as 0.10±0.01 fm by combining experimental data and theoretical models.Moreover,the average scattering length of theφ-deuteron interaction is derived to be 0.014±0.002 fm for the first time.Furthermore,the effect of the momentum transfer|tmin|on theφ-N scattering length at the threshold is discussed.The obtained results not only provide important theoretical information for a more comprehensive and accurate study of theφ-N scattering length,but also a basis for future experimental measurements ofφmeson production.

关 键 词：scattering length φmeson production NUCLEUS 

分 类 号：O571[理学—粒子物理与原子核物理] O572.33[理学—物理]