| Literature DB >> 14753930 |
C T H Davies1, E Follana, A Gray, G P Lepage, Q Mason, M Nobes, J Shigemitsu, H D Trottier, M Wingate, C Aubin, C Bernard, T Burch, C DeTar, Steven Gottlieb, E B Gregory, U M Heller, J E Hetrick, J Osborn, R Sugar, D Toussaint, M Di Pierro, A El-Khadra, A S Kronfeld, P B Mackenzie, D Menscher, J Simone.
Abstract
The recently developed Symanzik-improved staggered-quark discretization allows unquenched lattice-QCD simulations with much smaller (and more realistic) quark masses than previously possible. To test this formalism, we compare experiment with a variety of nonperturbative calculations in QCD drawn from a restricted set of "gold-plated" quantities. We find agreement to within statistical and systematic errors of 3% or less. We discuss the implications for phenomenology and, in particular, for heavy-quark physics.Year: 2004 PMID： 14753930 DOI： 10.1103/PhysRevLett.92.022001
Source DB: PubMed Journal: Phys Rev Lett ISSN： 0031-9007 Impact factor: 9.161