Perturbation theory vs. simulation for tadpole improvement factors in pure gauge theories

Details Perturbation theory vs. simulation for tadpole improvement factors in pure gauge theories Perturbation theory vs. simulation for tadpole improvement factors in pure gauge theories

2004-02-25

arxiv.org/abs/hep-lat/0402033v1

Phys.Rev. D70 (2004) 034501

Physics

High Energy Physics

High Energy Physics - Lattice

13 pages of revtex4

Scientific paper

10.1103/PhysRevD.70.034501

We calculate the mean link in Landau gauge for Wilson and improved SU(3) anisotropic gauge actions, using two loop perturbation theory and Monte Carlo simulation employing an accelerated Langevin algorithm. Twisted boundary conditions are employed, with a twist in all four lattice directions considerably improving the (Fourier accelerated) convergence to an improved lattice Landau gauge. Two loop perturbation theory is seen to predict the mean link extremely well even into the region of commonly simulated gauge couplings and so can be used remove the need for numerical tuning of self-consistent tadpole improvement factors. A three loop perturbative coefficient is inferred from the simulations and is found to be small. We show that finite size effects are small and argue likewise for (lattice) Gribov copies and double Dirac sheets.

Affiliated with

Also associated with

No associations

Rating

Perturbation theory vs. simulation for tadpole improvement factors in pure gauge theories does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Perturbation theory vs. simulation for tadpole improvement factors in pure gauge theories, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Perturbation theory vs. simulation for tadpole improvement factors in pure gauge theories will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-484811