Color Correlations in Multiquark Systems Studied with Lattice QCD
Analysis
This paper investigates the color correlations between static quarks in multiquark systems (3Q and 4Q) using lattice QCD. Understanding these correlations is crucial for understanding the strong force and the behavior of hadrons. The study's focus on the dependence of color correlations on the spatial configuration of quarks, particularly the flux tube path length, provides valuable insights into the dynamics of these systems. The finding of "universality" in the color leak across different multiquark systems is particularly significant.
Key Takeaways
“The color correlations depend on the minimal path length along a flux tube which connects two quarks under consideration. The color correlation between quarks quenches because of color leak into the gluon field (flux tube) and finally approaches the random color configuration in the large distance limit. We find a ``universality'' in the flux-tube path length dependence of the color leak for 2Q, 3Q, and 4Q ground-state systems.”