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The Fate of the Gluon in Two-dimensional Space-time

Authors
  • Cangemi, D.
  • Makowka, M.
  • Wanders, G.
Publication Date
Jan 01, 1990
Identifiers
DOI: 10.1016/0550-3213(90)90308-Z
OAI: oai:inspirehep.net:280158
Source
INSPIRE-HEP
Keywords
License
Unknown
External links

Abstract

The gluon propagator of QCD 2 with N f flavors of massless quarks in the light-cone is examined in the large N f limit. It is obtained from a set of identities for the gluon vertices based on the axial anomaly. The first and second order terms of a 1/ N f expansion of the two-point gluon vertex indicate that to each order the Fourier transform of the propagator has a branch point coinciding with its pole at the Schwinger mass. In contrast with QED 2 , the gluon field has no massive component corresponding to a well-defined mass. A conjecture on the singularity structure of the full propagator us presented.

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