High-Precision Lattice QCD Confronts Experiment
高能物理 - 格点
2008-11-26 v1 高能物理 - 唯象学
摘要
We argue that high-precision lattice QCD is now possible, for the first time, because of a new improved staggered quark discretization. We compare a wide variety of nonperturbative calculations in QCD with experiment, and find agreement to within statistical and systematic errors of 3% or less. We also present a new determination of alpha_msbar(Mz); we obtain 0.121(3). We discuss the implications of this breakthrough for phenomenology and, in particular, for heavy-quark physics.
引用
@article{arxiv.hep-lat/0304004,
title = {High-Precision Lattice QCD Confronts Experiment},
author = {C. T. H. Davies and E. Follana and A. Gray and G. P. Lepage and Q. Mason and M. Nobes and J. Shigemitsu and H. D. Trottier and M. Wingate and C. Aubin and C. Bernard and T. Burch and C. DeTar and Steven Gottlieb and E. B. Gregory and U. M. Heller and J. E. Hetrick and J. Osborn and R. Sugar and D. Toussaint and M. Di Pierro and A. El-Khadra and A. S. Kronfeld and P. B. Mackenzie and D. Menscher and J. Simone},
journal= {arXiv preprint arXiv:hep-lat/0304004},
year = {2008}
}
备注
2 figures, revtex