The 2++ Three-Gluon Tensor Glueball in Quantum Chromodynamics Sum Rules
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Abstract
The three-gluon tensor current of quantum numbers Jpc = 2++ is constructed. The corresponding two-point function is calculated by including not only the perturbative contribution but also the non-perturbative ones resulting from condensates of dimensions up to six. In a usual “resonance plus continuum ”model of the spectral function of the current, the quantum chromodynamics sum rules for the 2++three-gluon tensor glueball are deduced, and the mass of that glueball is determined to be 2.0 GeV approximately.
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