Measurement of Angular Distributions of Drell-Yan Dimuons in p + d Interaction at 800 GeV/c

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dc.creatorZhu, L. Y.
dc.creatorPeng, J. C.
dc.creatorReimer, P. E.
dc.creatorAwes, T. C.
dc.creatorBrooks, M. L.
dc.creatorBrown, C. N.
dc.date2006-09-06
dc.date.accessioned2026-07-07T11:58:16Z
dc.date.available2026-07-07T11:58:16Z
dc.descriptionWe report a measurement of the angular distributions of Drell-Yan dimuons produced using an 800 GeV/c proton beam on a deuterium target. The muon angular distributions in polar angle $θ$ and azimuthal angle $ϕ$ have been measured over the kinematic range $4.5 < m_{μμ} < 15$ GeV/c$^2$, $0 < p_T < 4 $ GeV/c, and $0 < x_F < 0.8$. No significant cos$2ϕ$ dependence is found in these proton-induced Drell-Yan data, in contrast to the situation for pion-induced Drell-Yan. The data are compared with expectations from models which attribute the cos$2ϕ$ distribution to a QCD vacuum effect or to the presence of the transverse-momentum-dependent Boer-Mulders structure function $h_1^\perp$. Constraints on the magnitude of the sea-quark $h_1^\perp$ structure functions are obtained.
dc.description4 pages, 3 figures
dc.identifierhttps://arxiv.org/abs/hep-ex/0609005
dc.identifierhttp://arxiv.org/abs/hep-ex/0609005
dc.identifierPhys.Rev.Lett.99:082301,2007
dc.identifierdoi:10.1103/PhysRevLett.99.082301
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/206171
dc.subjectHigh Energy Physics - Experiment
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectNuclear Experiment
dc.titleMeasurement of Angular Distributions of Drell-Yan Dimuons in p + d Interaction at 800 GeV/c
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