AAC analysis of polarized parton distributions with uncertainties

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dc.creatorHirai, M.
dc.creatorKumano, S.
dc.creatorSaito, N.
dc.date2004-08-03
dc.date.accessioned2026-07-07T03:53:01Z
dc.date.available2026-07-07T03:53:01Z
dc.descriptionWe report recent studies of the Asymmetry Analysis Collaboration (AAC) on polarized parton distribution functions (PDFs). Using the data on the spin symmetry A_1 in deep inelastic lepton scattering, we investigate optimum polarized PDFs. Their uncertainties are estimated by the Hessian method. The uncertainties are large for the polarized antiquark and gluon distributions. We discuss the role of accurate SLAC-E155 proton data on the determination of the PDFs. The obtained distributions are compared with other parametrization results.
dc.description4 pages, LaTeX, 4 eps files, dis04.cls, to be published in the proceedings of the 12th International Workshop on Deep Inelastic Scattering (DIS04), Strbske-Pleso, Slovakia, April 14-18, 2004. Polarized PDF library is available at http://spin.riken.bnl.gov/aac/
dc.identifierhttps://arxiv.org/abs/hep-ph/0408024
dc.identifierhttp://arxiv.org/abs/hep-ph/0408024
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/43683
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectHigh Energy Physics - Experiment
dc.subjectNuclear Experiment
dc.subjectNuclear Theory
dc.titleAAC analysis of polarized parton distributions with uncertainties
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