Baryonic Flux in Quenched and Two-Flavor Dynamical QCD after Abelian projection

TL;DR

This paper investigates the structure of color electric flux in three-quark systems within quenched and dynamical QCD, revealing a Y-shaped flux tube in the confined phase and Coulomb-like fields in the deconfined phase, supporting the dual superconductor model.

Contribution

It provides the first detailed analysis of baryonic flux tubes in both quenched and dynamical QCD at finite temperature using abelian projection and maximally abelian gauge.

Findings

Y-shaped flux tubes observed in the confined phase

Flux tubes surrounded by monopole currents support dual superconductor model

Flux distribution becomes Coulomb-like in the deconfined phase

Abstract

We study the distribution of color electric flux of the three-quark system in quenched and full QCD (with N_f = 2 flavors of dynamical quarks) at zero and finite temperature. To reduce ultra-violet fluctuations, the calculations are done in the abelian projected theory fixed to the maximally abelian gauge. In the confined phase we find clear evidence for a Y--shape flux tube surrounded and formed by the solenoidal monopole current, in accordance with the dual superconductor picture of confinement. In the deconfined, high temperature phase monopoles cease to condense, and the distribution of the color electric field becomes Coulomb--like.