New NLO Parametrizations of the Parton Distributions in Real Photons

dc.creatorAurenche, P.
dc.creatorFontannaz, M.
dc.creatorGuillet, J. Ph.
dc.date2005-03-25
dc.date2005-08-02
dc.date.accessioned2026-07-07T12:25:00Z
dc.date.available2026-07-07T12:25:00Z
dc.descriptionWe present new NLO sets of parton distributions in real photons based on a scheme invariant definition of the non-perturbative input. We compare the theoretical predictions with LEP data and a best fit allows us to constrain the parameters of the distributions. The shape of the gluon distribution is poorly constrained and we consider the possibility to measure it in photoproduction experiments. Three parametrizations which aim to take into account the scattering of LEP data are proposed. They are compared to other NLO parametrizations.
dc.description38 pages, 23 Postscript figures, fig. 6,7,8,9 improved, comparisons with other NLO parametrizations, added references
dc.identifierhttps://arxiv.org/abs/hep-ph/0503259
dc.identifierhttp://arxiv.org/abs/hep-ph/0503259
dc.identifierEur.Phys.J.C44:395-409,2005
dc.identifierdoi:10.1140/epjc/s2005-02355-1
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/214497
dc.subjectHigh Energy Physics - Phenomenology
dc.titleNew NLO Parametrizations of the Parton Distributions in Real Photons
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