New analytic running coupling in QCD: higher loop levels

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dc.creatorNesterenko, A. V.
dc.creatorSolovtsov, I. L.
dc.date2001-11-07
dc.date2001-12-19
dc.date.accessioned2026-07-07T03:45:45Z
dc.date.available2026-07-07T03:45:45Z
dc.descriptionThe properties of the new analytic running coupling are investigated at the higher loop levels. The expression for this invariant charge, independent of the normalization point, is obtained by invoking the asymptotic freedom condition. It is shown that at any loop level the relevant $β$ function has the universal behaviors at small and large values of the invariant charge. Due to this feature the new analytic running coupling possesses the universal asymptotics both in the ultraviolet and infrared regions irrespective of the loop level. The consistency of the model considered with the general definition of the QCD invariant charge is shown.
dc.descriptionLaTeX 2.09, 12 pages with 5 EPS figures, uses mpla1.sty; enlarged version is accepted for publication in Mod. Phys. Lett. A
dc.identifierhttps://arxiv.org/abs/hep-ph/0111067
dc.identifierhttp://arxiv.org/abs/hep-ph/0111067
dc.identifierMod.Phys.Lett. A16 (2001) 2517-2528
dc.identifierdoi:10.1142/S0217732301005989
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/41042
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectHigh Energy Physics - Theory
dc.titleNew analytic running coupling in QCD: higher loop levels
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