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

H. R. Fiebig·O. Linsuain·H. Markum·K. Rabitsch
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Abstract

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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H. R. Fiebig, O. Linsuain, H. Markum, K. Rabitsch. 1995-08-22. Extraction of hadron-hadron potentials on the lattice within 2+1 dimensional QED. https://doi.org/10.1016/0370-2693(96)00943-4

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