High-precision lattice QCD confronts experiment.
Phys Rev Lett
; 92(2): 022001, 2004 Jan 16.
Article
in En
| MEDLINE
| ID: mdl-14753930
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.
Search on Google
Database:
MEDLINE
Type of study:
Qualitative_research
Language:
En
Journal:
Phys Rev Lett
Year:
2004
Type:
Article
Affiliation country:
United kingdom