Angular Dependence of the Nuclear Enhancement of Drell-Yan Pairs

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dc.creatorFries, R. J.
dc.creatorMüller, B.
dc.creatorSchäfer, A.
dc.creatorStein, E.
dc.date1999-07-30
dc.date1999-10-09
dc.date.accessioned2026-07-07T12:03:33Z
dc.date.available2026-07-07T12:03:33Z
dc.descriptionWe calculate the nuclear enhancement in the angular distribution of Drell-Yan pairs produced in proton-nucleus reactions. Nuclear effects are encoded in universal twist-4 parton correlation functions. We find that the Lam-Tung relation for the angular coefficients of the lepton-pair distribution holds for the double-hard, but not for the soft-hard contribution. We also predict that nuclear enhancement effects at RHIC energies can be large.
dc.description4 pages LaTeX, 5 figures; v2: discussion in the summary extended, some references added; v3: manuscript somewhat shortened, eq. (9) added, accepted for publication in Phys. Rev. Lett
dc.identifierhttps://arxiv.org/abs/hep-ph/9907567
dc.identifierhttp://arxiv.org/abs/hep-ph/9907567
dc.identifierPhys.Rev.Lett.83:4261-4264,1999
dc.identifierdoi:10.1103/PhysRevLett.83.4261
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/207821
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectNuclear Theory
dc.titleAngular Dependence of the Nuclear Enhancement of Drell-Yan Pairs
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