A Bethe-Salpeter study with the <A^2>-enhanced effective QCD coupling

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dc.creatorKekez, Dalibor
dc.creatorKlabucar, Dubravko
dc.date2005-03-11
dc.date.accessioned2026-07-07T03:54:30Z
dc.date.available2026-07-07T03:54:30Z
dc.descriptionDyson-Schwinger equations provide a prominent approach to physics of strong interactions. To reproduce the hadronic phenomenology well, the Dyson-Schwinger approach in the rainbow-ladder approximation must employ an effective interaction between quarks which is fairly strong at intermediate (Q^2 approx. 0.5 GeV^2) spacelike transferred momenta. We have recently proposed that such an interaction may originate from the dimension 2 gluon condensate <A^2> which has recently attracted much attention, and showed that the resulting effective running coupling leads to the sufficiently strong dynamical chiral symmetry breaking and successful phenomenology at least in the light sector of pseudoscalar mesons. In the present paper, we give a more detailed investigation of the parameter dependence of these results.
dc.description20 pages, 5 figures, Prepared for 2nd Conference on Nuclear and Particle Physics with CEBAF at Jlab (NAPP 2003), Dubrovnik, Croatia, 26-31 May 2003
dc.identifierhttps://arxiv.org/abs/hep-ph/0503105
dc.identifierhttp://arxiv.org/abs/hep-ph/0503105
dc.identifierFizika B13 (2004) 461-476
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/44262
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectNuclear Theory
dc.titleA Bethe-Salpeter study with the <A^2>-enhanced effective QCD coupling
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