Progress in automated perturbation theory for heavy quark physics
Sep, 20033 pages
Part of Lattice field theory. Proceedings, 21st International Symposium, Lattice 2003, Tsukuba, Japan, July 15-19, 2003, 355-357
Published in:
- Nucl.Phys.B Proc.Suppl. 129 (2004) 355-357
Contribution to:
e-Print:
- hep-lat/0309086 [hep-lat]
View in:
Citations per year
Abstract:
We review our perturbative techniques for improved heavy quark actions. A new procedure for computing improvement coefficients is suggested, where the continuum limit of a lattice-regularized theory provides the matching conditions.We also use a gauge-invariant infrared regulator that is well suited to higher-order calculations in lattice gauge theory. We report on preliminary tests of our method, as well as a possible way to reduce systematic errors in these calculations.- talk: Tsukuba 2003/07/15
- fermion: lattice field theory
- lattice field theory: action
- heavy quark
- regularization
- continuum limit
- wave function: renormalization
- perturbation theory
References(10)
Figures(0)