摘要
The property of σ-meson or f0(400-1200)is studied in the general color symmetry model(GCM)for quantum chromodynamics.With recent determined values of mσ,fσand fπin GCM,the isoscalarππS-wave amplitude is calculated without any free parameter.The T-matrix pole for f0(400-1200)is found to be 1011-i 284MeV,which is very close to the Particle Data Group value(400-1200)-i(300-500)MeV.
作者
LÜXiao-fu
LIU Yu-xin
ZOU Bing-song
DING Hui-ming
ZHAO En-gang
吕晓夫;刘玉鑫;邹冰松;丁惠明;赵恩广(Department of Physics,Sichuan University,Chengdu 610064;Department of Physics,Peking University,Beijing 100871;Institute of Theoretical Physics,Chinese Academy of Sciences,Beijing 100080;Department of Physics,Jilin University,Changchun 130023;Queen Mary and Westfield College,London El 4NS,U.K.)
基金
Supported by the National Natural Science Foundation of China under Grant Nos.19335022 and 19675057
the China Post-doctoral Science Foundation
the Grant LWTZ 1298 of the Academy of Sciences
the K.C.Wong Education Foundation.
