Lu, XF , SICHUAN UNIV,DEPT PHYS,CHENGDU 610064,PEOPLES R CHINA.
部门归属:
BEIJING UNIV,DEPT PHYS,BEIJING 100871,PEOPLES R CHINA; CHINESE ACAD SCI,INST THEORET PHYS,BEIJING 100080,PEOPLES R CHINA; JILIN UNIV,DEPT PHYS,CHANGCHUN 130023,PEOPLES R CHINA; UNIV LONDON QUEEN MARY & WESTFIELD COLL,LONDON E1 4NS,ENGLAND
英文摘要:
The property of sigma-meson or f0(400-1200) is studied in the general color symmetry model (GCM) for quantum chromodynamics. With recent determined values of m(sigma), f(sigma) and f(pi) in GCM, the isoscalar pi pi S-wave amplitude is calculated without any free parameter. The T-matrix pole for f0(400-1200) is found to be 1011-i 284 MeV, which is very close to the Particle Data Group value (400-1200)-i (300-500) MeV.
