Classically Perfect Gauge Actions on Anisotropic Lattices

Abstract

We present a method for constructing classically perfect anisotropic actions for SU(3) gauge theory based on an isotropic Fixed Point Action. The action is parametrised using smeared (``fat'') links. The construction is done explicitly for anisotropy $\xi =a_s/a_t=2$ and 4. The corresponding renormalised anisotropies are determined using the torelon dispersion relation. The renormalisation of the anisotropy is small and the parametrisation describes the true action well. Quantities such as the static quark-antiquark potential, the critical temperature of the deconfining phase transition and the low-lying glueball spectrum are measured on lattices with anisotropy $\xi =2$. The mass of the scalar $0^{++}$ glueball is determined to be 1580(60) MeV, while the tensor $2^{++}$ glueball is at 2430(60) MeV.

64 pages, 19 figures, LaTeX

References in corpus (8)

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Cited by in corpus (5)

• Testing the fixed-point QCD action and the construction of chiral currents
• A lattice study of the masses of singlet 0++ mesons
• Convergence Rate and Locality of Improved Overlap Fermions
• Absence of evidence for pentaquarks on the lattice
• Renormalization group improved action on anisotropic lattices