NJL and QCD from String Theory

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dc.creatorAntonyan, E.
dc.creatorHarvey, J. A.
dc.creatorJensen, S.
dc.creatorKutasov, D.
dc.date2006-04-03
dc.date.accessioned2026-07-07T07:10:11Z
dc.date.available2026-07-07T07:10:11Z
dc.descriptionWe study a configuration of D-branes in string theory that is described at low energies by a four-dimensional field theory with a dynamically broken chiral symmetry. In a certain region of the parameter space of the brane configuration the low-energy theory is a non-local generalization of the Nambu-Jona-Lasinio (NJL) model. This vector model is exactly solvable at large N_c and dynamically breaks chiral symmetry at arbitrarily weak 't Hooft coupling. At strong coupling the dynamics is determined by the low-energy theory on D-branes living in the near-horizon geometry of other branes. In a different region of parameter space the brane construction gives rise to large N_c QCD. Thus the D-brane system interpolates between NJL and QCD.
dc.description31 pages, harvmac
dc.identifierhttps://arxiv.org/abs/hep-th/0604017
dc.identifierhttp://arxiv.org/abs/hep-th/0604017
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/111345
dc.subjectHigh Energy Physics - Theory
dc.titleNJL and QCD from String Theory
dc.typetext

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