INSTANTON EFFECTS IN HADRON SPECTROSCOPY IN SU(2) (LATTICE) GAUGE-THEORY

Authors
DEGRAND T HASENFRATZ A KOVACS TG
Citation
T. Degrand et al., INSTANTON EFFECTS IN HADRON SPECTROSCOPY IN SU(2) (LATTICE) GAUGE-THEORY, Physics letters. Section B, 420(1-2), 1998, pp. 97-103
Citations number
18
Categorie Soggetti
Physics
Journal title
Physics letters. Section B → ACNP
ISSN journal
03702693
Volume
420
Issue
1-2
Year of publication
1998
Pages
97 - 103
Database
ISI
SICI code
0370-2693(1998)420:1-2<97:IEIHSI>2.0.ZU;2-8
Abstract
We describe quenched spectroscopy in SU(2) gauge theory using smoothed gauge field configurations. We investigate the properties of quarks m oving in instanton background field configurations, where the sizes an d locations of the instantons are taken from simulations of the full g auge theory. By themselves, these multi-instanton configurations do no t confine quarks, but they induce chiral symmetry breaking. (C) 1998 E lsevier Science B.V.