Isovector unpolarized quark distribution in the nucleon in the large-N_c limit

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dc.creatorPobylitsa, P. V.
dc.creatorPolyakov, M. V.
dc.creatorGoeke, K.
dc.creatorWatabe, T.
dc.creatorWeiss, C.
dc.date1998-04-28
dc.date.accessioned2026-07-07T10:52:48Z
dc.date.available2026-07-07T10:52:48Z
dc.descriptionWe calculate the isovector (flavor-nonsinglet) unpolarized quark- and antiquark distributions in the nucleon at a low normalization point in the large-N_c limit. The nucleon is described as a soliton of the effective chiral theory. The isovector distribution appears in the next-to-leading order of the 1/N_c-expansion. Numerical results for the quark- and antiquark distributions compare well with the parametrizations of the data at a low normalization point. This large-N_c approach gives a flavor asymmetry of the antiquark distribution (violation of the Gottfried sum rule) in good agreement with the measurements.
dc.description31 pages, LaTeX, 1 table, 4 figures included using epsf
dc.identifierhttps://arxiv.org/abs/hep-ph/9804436
dc.identifierhttp://arxiv.org/abs/hep-ph/9804436
dc.identifierPhys.Rev.D59:034024,1999
dc.identifierdoi:10.1103/PhysRevD.59.034024
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/185277
dc.subjectHigh Energy Physics - Phenomenology
dc.titleIsovector unpolarized quark distribution in the nucleon in the large-N_c limit
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