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Keywords:

  • Flux tube;
  • quantum chromodynamics;
  • symmetry breakdown;
  • mass term

Abstract

It is argued that the phenomenon of a flux tube in quantum chromodynamics is closely connected with a spontaneously symmetry breakdown of gauge theory. It is shown that in the presence of a mass term in the SU(2) gauge theory the Nielsen-Olesen equations describe the flux tube surrounded by an external field.