Measurement of Decay Angular Distributions of Drell-Yan Events for p- d Interaction at 800 GeV/c

Journal Article · Fri Nov 17 00:00:00 EST 2006 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2402729· OSTI ID:20895098

Peng, J C; Zhu, L Y; Makins, N ^[1]; Reimer, P E; Geesaman, D F; Kaufman, S B; Mueller, B A ^[2]; Awes, T C; Stankus, P W; Young, G R ^[3]; Brooks, M L; Carey, T A; Garvey, G T; Lee, D M; Leitch, M J; McGaughey, P L; Moss, J M; Park, B K; Sondheim, W E; Thompson, T N ^[4]

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1. University of Illinois at Urbana-Champaign, Urbana, IL 61801 (United States)
2. Physics Division, Argonne National Laboratory, Argonne, IL 60439 (United States)
3. Oak Ridge National Laboratory, Oak Ridge, TN 37831 (United States)
4. Los Alamos National Laboratory, Los Alamos, NM 87545 (United States)

We report preliminary results from a measurement of the angular distributions of Drell-Yan dimuons produced using an 800 GeV/c proton beam on a deuterium target. No significant cos2{phi} 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 cos2{phi} distribution to a QCD vacuum effect or to the presence of the transverse-momentum-dependent Boer-Mulders structure function h1.

• OSTI ID: 20895098
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 870; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANGULAR DISTRIBUTION
DEUTERIUM TARGET
DRELL MODEL
GEV RANGE 100-1000
PARTICLE DECAY
PIONS
PROTON BEAMS
PROTON REACTIONS
PROTON-NUCLEON INTERACTIONS
PROTONS
QUANTUM CHROMODYNAMICS
STRUCTURE FUNCTIONS
TRANSVERSE MOMENTUM