Extraction of hadron-hadron potentials on the lattice within 2+1 dimensional QED

Details Extraction of hadron-hadron potentials on the lattice within 2+1 dimensional QED Extraction of hadron-hadron potentials on the lattice within 2+1 dimensional QED

1995-08-22

arxiv.org/abs/hep-lat/9508021v1

Phys.Lett. B386 (1996) 285-290

Physics

High Energy Physics

High Energy Physics - Lattice

12 pages, uuencoded tar-compressed postscript file

Scientific paper

10.1016/0370-2693(96)00943-4

A potential between mesons is extracted from 4-point functions within lattice gauge theory taking 2+1 dimensional QED as an example. This theory possesses confinement and dynamical fermions. The resulting meson-meson potential has a short-ranged hard repulsive core due to antisymmetrization. The expected dipole-dipole forces lead to attraction at intermediate distances. Sea quarks lead to a softer form of the total potential.

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