Gluons in the lattice SU(2) classical field

Details Gluons in the lattice SU(2) classical field Gluons in the lattice SU(2) classical field

2000-07-27

arxiv.org/abs/hep-lat/0007040v1

Physics

High Energy Physics

High Energy Physics - Lattice

LaTeX, 9 pages, Proceedings of the International Workshop on Nonperturbative Methods and Lattice QCD, Guangzhou, China

Scientific paper

The SU(2) gluonic correlation functions, glueball effective masses in the $J^{P}=0^{+}$, $2^{+}$ and $0^{-}$ channels were calculated from the lattice classical gauge configurations which were obtained by smoothing the thermal gauge configurations through the improved cooling method. The instanton-induced attractive force in the $0^{+}$ channel and the repulsive force in the $0^-$ channel are confirmed in the Monte Carlo simulation. There is evidence that the instanton vacuum contribution to the $0^+$ glueball mass is significant.

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