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Phys. Rev. D 60, 034509 (1999) [13 pages]

Glueball spectrum from an anisotropic lattice study

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Colin J. Morningstar
Department of Physics, University of California at San Diego, La Jolla, California 92093-0319

Mike Peardon
John von Neumann-Institut für Computing and DESY, Forschungszentrum Jülich, D-52425 Jülich, Germany

Received 7 January 1999; published 7 July 1999

The spectrum of glueballs below 4 GeV in the SU(3) pure-gauge theory is investigated using Monte Carlo simulations of gluons on several anisotropic lattices with spatial grid separations ranging from 0.1 to 0.4 fm. Systematic errors from discretization and finite volume are studied, and the continuum spin quantum numbers are identified. Care is taken to distinguish single glueball states from two-glueball and torelon-pair states. Our determination of the spectrum significantly improves upon previous Wilson action calculations.

© 1999 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevD.60.034509
DOI:
10.1103/PhysRevD.60.034509
PACS:
12.38.Gc, 11.15.Ha, 12.39.Mk