A Lattice Study of the Glueball Spectrum

Details A Lattice Study of the Glueball Spectrum A Lattice Study of the Glueball Spectrum

2000-04-21

arxiv.org/abs/hep-lat/0004018v1

Chin.Phys.Lett. 18 (2001) 187-189

Physics

High Energy Physics

High Energy Physics - Lattice

10 pages, 2 figures,typos corrected

Scientific paper

10.1088/0256-307X/18/2/311

Glueball spectrum is studied using an improved gluonic action on asymmetric lattices in the pure SU(3) gauge theory. The smallest spatial lattice spacing is about $0.08fm$ which makes the extrapolation to the continuum limit more reliable. In particular, attention is paid to the scalar glueball mass which is known to have problems in the extrapolation. Converting our lattice results to physical units using the scale set by the static quark potential, we obtain the following results for the glueball masses: $M_G(0^{++})=1730(90)MeV$ for the scalar glueball mass and $M_G(2^{++})=2400(95)MeV$ for the tensor glueball.

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