Influence of Fermions on Vortices in SU(2)-QCD

TL;DR

This paper investigates how fermions influence vortex structures in SU(2) QCD, demonstrating that the vortex model can still reproduce the string tension even with fermionic back reaction.

Contribution

It shows that the center vortex model remains valid in the presence of fermions, extending its applicability to more realistic QCD scenarios.

Findings

Vortex model reproduces string tension with fermions present

Fermionic back reaction does not invalidate vortex confinement mechanisms

Supports the vortex picture as a robust confinement model

Abstract

Gauge fields control the dynamics of fermions, also a back reaction of fermions on the gauge field is expected. This back reaction is investigated within the vortex picture of the QCD vacuum. We show that the center vortex model reproduces the string tension of the full theory also with the presence of fermionic fields.