Gluon Versus Meson Exchange in Hadron-Hadron Systems on the Lattice

TL;DR

This paper uses lattice QCD to study interactions between heavy hadrons, revealing short-range dipole forces and minor sea quark effects in baryon-baryon, baryon-antibaryon, and meson-meson systems.

Contribution

It provides new lattice QCD results on heavy hadron interactions, including baryon-antibaryon and meson-meson potentials, highlighting the short-range nature of dipole forces.

Findings

Dipole forces are very short-range.

Sea quarks have a minor role.

Potential results for baryon-antibaryon and meson-meson systems.

Abstract

The interaction of spatially extended heavy hadrons is investigated in the framework of lattice QCD with dynamical quarks. In addition to the baryon-baryon potential results for the baryon-antibaryon and for the meson-meson system are presented. It is shown that the expected dipole forces have a very short range and that sea quarks play a minor important role.