skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: String breaking in four dimensional lattice QCD

Journal Article · · Physical Review D

Virtual quark pair screening leads to breaking of the string between fundamental representation quarks in QCD. For unquenched four dimensional lattice QCD, this (so far elusive) phenomenon is studied using the recently developed truncated determinant algorithm (TDA). The dynamical configurations were generated on a 650 MHz PC. Quark eigenmodes up to 420 MeV are included exactly in these TDA studies performed at low quark mass on large coarse [but O(a{sup 2}) improved] lattices. A study of Wilson line correlators in Coulomb gauge extracted from an ensemble of 1000 two-flavor dynamical configurations reveals evidence for flattening of the string tension at distances R{approx}>1 fm.

Sponsoring Organization:
(US)
OSTI ID:
40205127
Journal Information:
Physical Review D, Vol. 63, Issue 11; Other Information: DOI: 10.1103/PhysRevD.63.111501; Othernumber: PRVDAQ000063000011111501000001; R05107PRD; PBD: 1 Jun 2001; ISSN 0556-2821
Publisher:
The American Physical Society
Country of Publication:
United States
Language:
English

Similar Records

Static potential and local color fields in unquenched lattice QCD{sub 3}
Journal Article · Thu Sep 01 00:00:00 EDT 2005 · Physical Review. D, Particles Fields · OSTI ID:40205127

Unquenched Studies Using the Truncated Determinant Algorithm
Conference · Thu Nov 29 00:00:00 EST 2001 · OSTI ID:40205127

Finite-size effects in lattice QCD with dynamical Wilson fermions
Journal Article · Fri Jul 01 00:00:00 EDT 2005 · Physical Review. D, Particles Fields · OSTI ID:40205127