Global Analysis of Helicity Parton Densities and Their Uncertainties

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dc.creatorde Florian, Daniel
dc.creatorSassot, Rodolfo
dc.creatorStratmann, Marco
dc.creatorVogelsang, Werner
dc.date2008-04-02
dc.date.accessioned2026-07-07T11:49:34Z
dc.date.available2026-07-07T11:49:34Z
dc.descriptionWe present a new analysis of the helicity parton distributions of the nucleon. The analysis takes into account the available data from inclusive and semi-inclusive polarized deep inelastic scattering, as well as from polarized pp scattering at RHIC. For the first time, all theoretical calculations are performed fully at next-to-leading order (NLO) of perturbative QCD, using a method that allows to incorporate the NLO corrections in a very fast and efficient way in the analysis. We find evidence for a rather small gluon polarization in the nucleon, over a limited region of momentum fraction, and for interesting flavor patterns in the polarized sea.
dc.description4 pages, 3 figures
dc.identifierhttps://arxiv.org/abs/0804.0422
dc.identifierhttp://arxiv.org/abs/0804.0422
dc.identifierPhys.Rev.Lett.101:072001,2008
dc.identifierdoi:10.1103/PhysRevLett.101.072001
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/203277
dc.subjectHigh Energy Physics - Phenomenology
dc.titleGlobal Analysis of Helicity Parton Densities and Their Uncertainties
dc.typetext

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