High-Precision Lattice QCD Confronts Experiment

Preprint

7 April 2003

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.hep-lat/0304004

Abstract

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.

Keywords

HIGH PRECISION LATTICE
PRECISION LATTICE QCD
CONFRONTS EXPERIMENT
SYSTEMATIC ERRORS
PHENOMENOLOGY
QCD CONFRONTS
STATISTICAL

All Related Versions

Version 1, 2003-04-07, ArXiv
Published version: Physical Review Letters, 92 (2), 022001.

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