Infrared divergences in three-dimensional gauge theories

E. I. Guendelman, Z. M. Radulovic

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

The loop expansion in massless three-dimensional gauge theories develops infrared divergences starting at the two-loop level. However, we show that the divergences in QCD3 which arise through the three-loop level (g6) can be removed by using a residual gauge freedom in covariant gauges. Divergences in gauge-invariant amplitudes arise at g8 order, as shown explicitly for the Wilson loop. Massless scalar QED develops a gauge-invariant singularity at order g4, which can be canceled by changing the perturbative vacuum.

Original languageEnglish
Pages (from-to)1338-1348
Number of pages11
JournalPhysical Review D
Volume30
Issue number6
DOIs
StatePublished - 1 Jan 1984
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Fingerprint

Dive into the research topics of 'Infrared divergences in three-dimensional gauge theories'. Together they form a unique fingerprint.

Cite this