Search for Abelian dominance in the effective SO ( N ) theory

Raval, Haresh (Department of Physics, Indian Institute of Technology Delhi, New Delhi-11016, India)

03 January 2019

Abstract: Recently a new quadratic gauge has been introduced in the SU(N) QCD in which interesting non perturbative characteristics of QCD has been brought to light. One of the characteristics is Abelian dominance, which is one of the signatures of color confinement in a dual superconductor picture. The SO(N) QCD has been used quite often for various studies. In this paper, we extend the application of the quadratic gauge to SO(N) QCD and probe different vacua of the effective theory in which ghosts condense to search existence of Abelian dominance. We begin with the vacuum whose SU(N) group version leads us to find the evidence of Abelian dominance in SU(N) QCD. Contrary to expectation, we do not observe Abelian dominance in such vacuum here. Taking hint from this consequence, another vacuum is then examined in which existence of Abelian dominance is strongly indicated. The geometric explanation for the results in both the vacua has been provided.

Published in: Physics letters B 789 (2019) 545-549
Published by: Elsevier
DOI: 10.1016/j.physletb.2018.12.031
License: CC-BY-3.0

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