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

Authors:
 [1];  [2];  [2];  [2]
  1. University of Illinois, Urbana-Champaign
  2. ORNL
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
931852
DOE Contract Number:
DE-AC05-00OR22725
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review Letters; Journal Volume: 99; Journal Issue: 8
Country of Publication:
United States
Language:
English

Citation Formats

Zhu, L. Y., Awes, Terry C, Stankus, Paul W, and Young, Glenn R. Measurement of Angular Distributions of Drell-Yan Dimuons in p+d Interactions at 800 GeV/c. United States: N. p., 2007. Web. doi:10.1103/PhysRevLett.99.082301.
Zhu, L. Y., Awes, Terry C, Stankus, Paul W, & Young, Glenn R. Measurement of Angular Distributions of Drell-Yan Dimuons in p+d Interactions at 800 GeV/c. United States. doi:10.1103/PhysRevLett.99.082301.
Zhu, L. Y., Awes, Terry C, Stankus, Paul W, and Young, Glenn R. Mon . "Measurement of Angular Distributions of Drell-Yan Dimuons in p+d Interactions at 800 GeV/c". United States. doi:10.1103/PhysRevLett.99.082301.
@article{osti_931852,
title = {Measurement of Angular Distributions of Drell-Yan Dimuons in p+d Interactions at 800 GeV/c},
author = {Zhu, L. Y. and Awes, Terry C and Stankus, Paul W and Young, Glenn R},
abstractNote = {},
doi = {10.1103/PhysRevLett.99.082301},
journal = {Physical Review Letters},
number = 8,
volume = 99,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 2007},
month = {Mon Jan 01 00:00:00 EST 2007}
}
  • We 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 the dilepton rest frame have been measured over the kinematic range 4.5<m{sub {mu}}{sub {mu}}<15 GeV/c{sup 2}, 0<p{sub T}<4 GeV/c, and 0<x{sub F}<0.8. No significant cos2{phi} dependence is found in these proton-induced Drell-Yan data, in contrast with the situation for pion-induced Drell-Yan data. The data are compared with expectations from models which attribute the cos2{phi} distribution to a QCD vacuum effect or to the presence of the transverse-momentum-dependent Boer-Mulders structure function h{sub 1}{sup perpendicular}.more » Constraints on the magnitude of the sea-quark h{sub 1}{sup perpendicular} structure functions are obtained.« less
  • We report a measurement of the angular distributions of Drell-Yan dimuons produced using an 800 GeV/c proton beam on a hydrogen target. The polar and azimuthal angular distribution parameters have been extracted over the kinematic range 4.5 < m{sub {mu}{mu}} < 15 GeV/c{sup 2} (excluding the {Upsilon} resonance region), 0 < p{sub T} < 4 GeV/c, and 0 < x{sub F} < 0.8. The p+p angular distributions are similar to those of p+d, and both data sets are compared with models which attribute the cos2{phi} distribution either to the presence of the transverse-momentum-dependent Boer-Mulders structure function h{sub 1}{sup {perpendicular}} ormore » to QCD effects. The data indicate the need to include QCD effects before reliable information on the Boer-Mulders function can be extracted. The validity of the Lam-Tung relation in p+p Drell-Yan data is also tested.« less
  • No abstract prepared.
  • No abstract prepared.
  • We 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 the dilepton rest frame have been measured over the kinematic range 4.5<m{sub u}{sub u}<15 GeV/c2, 0<pT<4 GeV/c, and 0<xF<0.8. No significant cos2 dependence is found in these proton-induced Drell-Yan data, in contrast with the situation for pion-induced Drell-Yan data. The data are compared with expectations from models which attribute the cos2 distribution to a QCD vacuum effect or to the presence of the transverse-momentum-dependent Boer-Mulders structure function h1. Constraints on the magnitude ofmore » the sea-quark h1 structure functions are obtained.« less