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 calculat...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.展开更多
基金Supported by the National Natural Science Foundation of China under Grant Nos.19335022 and 19675057the China Post-doctoral Science Foundation+1 种基金the Grant LWTZ 1298 of the Academy of Sciencesthe K.C.Wong Education Foundation.
文摘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.
