Sivers Asymmetry for the proton and the neutron

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dc.creatorScopetta, S.
dc.creatorCourtoy, A.
dc.creatorFratini, F.
dc.creatorVento, V.
dc.date2008-07-14
dc.date.accessioned2026-07-07T11:52:30Z
dc.date.available2026-07-07T11:52:30Z
dc.descriptionA formalism is presented to evaluate the Sivers function in constituent quark models. A non-relativistic reduction of the scheme is performed and applied to the Isgur-Karl model. The results obtained are consistent with a sizable Sivers effect and the signs for the u and d flavor contributions turn out to be opposite. The Burkardt Sum Rule is fulfilled to a large extent. After the estimate of the QCD evolution of the results from the momentum scale of the model to the experimental one, a reasonable agreement with the available data is obtained. A calculation of nuclear effects in the extraction of neutron single spin asymmetries in semi-inclusive deep inelastic scattering off 3He is also described. In the kinematics of forth-coming experiments at JLab, it is found that the nuclear effects arising within an Impulse Approximation approach are under control.
dc.description8 pages, 3 figures, Invited talk at the "6th International Conference on Hadronic Physics", ICTP, Trieste, Italy, 12-16 May 2008. To appear in AIP Proceedings Series
dc.identifierhttps://arxiv.org/abs/0807.2189
dc.identifierhttp://arxiv.org/abs/0807.2189
dc.identifierAIPConf.Proc.1056:114-121,2008
dc.identifierdoi:10.1063/1.3013030
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/204251
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectNuclear Theory
dc.titleSivers Asymmetry for the proton and the neutron
dc.typetext

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