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Cited by 403

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Infrared Behavior of Gluon and Ghost Propagators in Landau Gauge QCD

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von Smekal, Lorenz, Hauck, Andreas, Alkofer, Reinhard·1997·Physical Review Letters

Abstract

A truncation scheme for the Dyson-Schwinger equations of Euclidean QCD in Landau gauge is presented. It implements the Slavnov-Taylor identities for the three-gluon and ghost-gluon vertices, whereas irreducible four-gluon couplings as well as the gluon-ghost and ghost-ghost scattering kernels are neglected. The infrared behavior of gluon and ghost propagators is obtained analytically: The gluon propagator vanishes for small momenta, whereas the ghost propagator diverges strongly. The numerical solutions are compared with recent lattice results. The running coupling approaches a fixed point, ${\ensuremath{\alpha}}_{c}\ensuremath{\simeq}9.5$, in the infrared.

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Metadata

Authors
von Smekal, L., Hauck, A., & Alkofer, R.
Venue
Physical Review Letters
Published
1997-11-10
Volume
79
Issue
19
Pages
3591-3594
ISSN
  • 0031-9007 (ISSN-L)
  • 1079-7114
OpenAlex
W2032451690
Cited by
403
References
5
FWCI
4.96
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Infrared Behavior of Gluon and Ghost Propagators in Landau Gauge QCD. https://app.cochat.ai/papers/10.1103/physrevlett.79.3591
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von Smekal, L., Hauck, A., & Alkofer, R. (1997). Infrared Behavior of Gluon and Ghost Propagators in Landau Gauge QCD. Physical Review Letters. https://doi.org/10.1103/physrevlett.79.3591

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