Baryon-Baryon Potentials on the Lattice

TL;DR

This study uses lattice QCD to analyze interactions between heavy baryons, revealing short-range dipole forces and more attractive baryon-antibaryon interactions, with sea quarks having limited impact.

Contribution

It provides the first detailed lattice QCD analysis of heavy baryon interactions, highlighting the nature of their forces and the role of sea quarks.

Findings

Dipole forces are very short-range.

Baryon-antibaryon interactions are more attractive.

Sea quarks have a minor role.

Abstract

The interaction of spatially extended heavy baryons is investigated in the framework of lattice QCD with dynamical quarks. It is shown that the expected dipole forces have a very short range and that the baryon-antibaryon interaction is more attractive than the baryon-baryon interaction. Sea quarks play a minor important role.