EXTRACTION OF HADRON-HADRON POTENTIALS ON THE LATTICE WITHIN 2+1 DIMENSIONAL QED

Authors
FIEBIG HR LINSUAIN O MARKUM H RABITSCH K
Citation
Hr. Fiebig et al., EXTRACTION OF HADRON-HADRON POTENTIALS ON THE LATTICE WITHIN 2+1 DIMENSIONAL QED, Physics letters. Section B, 386(1-4), 1996, pp. 285-290
Citations number
21
Categorie Soggetti
Physics
Journal title
Physics letters. Section B → ACNP
ISSN journal
03702693
Volume
386
Issue
1-4
Year of publication
1996
Pages
285 - 290
Database
ISI
SICI code
0370-2693(1996)386:1-4<285:EOHPOT>2.0.ZU;2-C
Abstract
A potential between mesons is extracted from time correlation function s of a composite local operator within lattice gauge theory, taking 21 dimensional QED as an example. This theory possesses confinement and dynamical fermions. The resulting meson-meson potential has a short-r anged hard repulsive core due to antisymmetrisation. The expected dipo le-dipole forces lead to attraction at intermediate distances. Sea qua rks lead to a softer form of the total potential.