期刊
COMMUNICATIONS IN THEORETICAL PHYSICS
卷 54, 期 3, 页码 495-498出版社
IOP PUBLISHING LTD
DOI: 10.1088/0253-6102/54/3/23
关键词
QCD sum rule; glueball; Fermion correction
资金
- National Natural Science Foundation of China [10775073]
- Education Ministry of China [20070055037]
Contributions of fermions to the mass of the scalar glueball 0(++) are calculated at two-loop level in the framework of QCD sum rules. Its lightly changes the coefficients in the operator product expansion (OPE) and shifts the mass of glueball to 1.72 +/- 0.07 GeV.
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