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Gluon condensates and effective gluon mass

by Jan Horak, Friederike Ihssen, Joannis Papavassiliou, Jan M. Pawlowski, Axel Weber and Christof Wetterich

Submission summary

As Contributors: Jan Horak
Preprint link: scipost_202202_00009v2
Date accepted: 2022-05-17
Date submitted: 2022-04-06 15:57
Submitted by: Horak, Jan
Submitted to: SciPost Physics
Academic field: Physics
Specialties:
  • High-Energy Physics - Theory
  • High-Energy Physics - Phenomenology
Approaches: Theoretical, Phenomenological

Abstract

Lattice simulations along with studies in continuum QCD indicate that non-perturbative quantum fluctuations lead to an infrared regularisation of the gluon propagator in covariant gauges in the form of an effective mass-like behaviour. In the present work we propose an analytic understanding of this phenomenon in terms of gluon condensation through a dynamical version of the Higgs mechanism, leading to the emergence of color condensates. Within the functional renormalisation group approach we compute the effective potential of covariantly constant field strengths, whose non-trivial minimum is related to the color condensates. In the physical case of an SU(3) gauge group this is an octet condensate. The value of the gluon mass obtained through this procedure compares very well to lattice results and the mass gap arising from alternative dynamical scenarios.

Current status:
Publication decision taken: accept

Editorial decision: For Journal SciPost Physics: Publish
(status: Editorial decision fixed and (if required) accepted by authors)



List of changes

- removed comment about direction of F F dual contribution
- corrected typos as requested


Reports on this Submission

Anonymous Report 3 on 2022-4-9 (Invited Report)

Report

Since the authors have fully addressed my minor points in the updated version, I am delighted to recommend publication.

  • validity: -
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Anonymous Report 1 on 2022-4-8 (Invited Report)

Report

The authors have addressed properly my queries in the updated version of the manuscript. For this reason, I recommend publication.

  • validity: -
  • significance: -
  • originality: -
  • clarity: -
  • formatting: -
  • grammar: -

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