Stabilization and Consistency for Subtracted and Unsubtracted QCD Sum Rules for 0++ Scalar Glueball
作者： Zhang Zhen-Yu , Liu Jue-Ping
DOI: 10.1088/0256-307X/23/11/011
关键词:
摘要: Based on a semi-classical expansion for quantum chromodynamics in the instanton liquid background, correlation function of 0++ scalar glueball current is calculated. Besides pure classical and contributions, contributions arising from interactions between fields gluon ones come into play. It turns out that latter have great role not only making stabilization subtracted unsubtracted Laplace-transformed QCD sum rules glueball, but also bring back consistency two related rules, or equivalently asymptotic expression low energy theorem. The result mass predicted to be mG = 1.35 GeV.
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