Infrared Exponents and Running Coupling of SU(N) Yang-Mills Theories

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dc.creatorFischer, C. S.
dc.creatorAlkofer, R.
dc.date2002-02-21
dc.date.accessioned2026-07-07T11:09:14Z
dc.date.available2026-07-07T11:09:14Z
dc.descriptionWe present approximate solutions for the gluon and ghost propagators as well as the running coupling in Landau gauge Yang-Mills theories. We solve the corresponding Dyson-Schwinger equations in flat Euclidean space-time without any angular approximation. This supplements recently obtained results employing a four-torus, i.e. a compact space-time manifold, as infrared regulator. We confirm previous findings deduced from an extrapolation with tori of different volumes: the gluon propagator is weakly vanishing in the infrared and the ghost propagator is highly singular. For non-vanishing momenta our propagators are in remarkable agreement with recent lattice calculations.
dc.description11 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/hep-ph/0202202
dc.identifierhttp://arxiv.org/abs/hep-ph/0202202
dc.identifierPhys.Lett.B536:177-184,2002
dc.identifierdoi:10.1016/S0370-2693(02)01809-9
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/190394
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectHigh Energy Physics - Lattice
dc.subjectHigh Energy Physics - Theory
dc.subjectNuclear Theory
dc.titleInfrared Exponents and Running Coupling of SU(N) Yang-Mills Theories
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