Parton distribution functions and quark orbital motion

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dc.creatorZavada, Petr
dc.date2007-06-20
dc.date.accessioned2026-07-07T11:17:04Z
dc.date.available2026-07-07T11:17:04Z
dc.descriptionCovariant version of the quark-parton model is studied. Dependence of the structure functions and parton distributions on the 3D quark intrinsic motion is discussed. The important role of the quark orbital momentum, which is a particular case of intrinsic motion, appears as a direct consequence of the covariant description. Effect of orbital motion is substantial especially for polarized structure functions. At the same time, the procedure for obtaining the quark momentum distributions of polarized quarks from the combination of polarized and unpolarized structure functions is suggested.
dc.description17 pages, 2 figures, 1 table. Paper is accepted for publication in Eur.Phys.J. C
dc.identifierhttps://arxiv.org/abs/0706.2988
dc.identifierhttp://arxiv.org/abs/0706.2988
dc.identifierEur.Phys.J.C52:121-131,2007
dc.identifierdoi:10.1140/epjc/s10052-007-0360-1
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/192881
dc.subjectHigh Energy Physics - Phenomenology
dc.titleParton distribution functions and quark orbital motion
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