Nuclear Broadening of Transverse Momentum in Drell-Yan Reactions

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dc.creatorJohnson, M. B.
dc.creatorKopeliovich, B. Z.
dc.creatorLeitch, M. J.
dc.creatorMcGaughey, P. L.
dc.creatorMoss, J. M.
dc.creatorPotashnikova, I. K.
dc.creatorSchmidt, Ivan
dc.date2006-06-10
dc.date2007-01-24
dc.date.accessioned2026-07-07T10:24:59Z
dc.date.available2026-07-07T10:24:59Z
dc.descriptionData for Drell-Yan (DY) processes on nuclei are currently available from fixed target experiments up to the highest energy of $\sqrt{s}=40\GeV$. The bulk of the data cover the range of short coherence length, where the amplitudes of the DY reaction on different nucleons do not interfere. In this regime, DY processes provide direct information about broadening of the transverse momentum of the projectile parton experiencing initial-state multiple interactions. We revise a previous analysis of data from the E772 experiment and perform a new analysis of broadening including data from the E866 experiment at Fermilab. We conclude that the observed broadening is about twice as large as the one found previously. This helps to settle controversies that arose from a comparison of the original determination of broadening with data from other experiments and reactions.
dc.description8 pages, 6 figures, fig.4 is added. The version to appear in Phys. Rev. C
dc.identifierhttps://arxiv.org/abs/hep-ph/0606126
dc.identifierhttp://arxiv.org/abs/hep-ph/0606126
dc.identifierPhys.Rev.C75:035206,2007
dc.identifierdoi:10.1103/PhysRevC.75.035206
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/176392
dc.subjectHigh Energy Physics - Phenomenology
dc.titleNuclear Broadening of Transverse Momentum in Drell-Yan Reactions
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