title: Measurement of angular distributions of Drell-Yan dimuons in p+d interactions at 800 GeV/c.
abstract: 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{mu mu}<15 GeV/c{2}, 0<p{T}<4 GeV/c, and 0<x{F}<0.8. No significant cos2phi 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 cos2phi distribution to a QCD vacuum effect or to the presence of the transverse-momentum-dependent Boer-Mulders structure function h{1}{perpendicular}. Constraints on the magnitude of the sea-quark h{1}{perpendicular} structure functions are obtained.
authors.affiliation: University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.
authors.forename: L Y
authors.initials: LY
authors.lastname: Zhu
authors.forename: J C
authors.initials: JC
authors.lastname: Peng
authors.forename: P E
authors.initials: PE
authors.lastname: Reimer
authors.forename: T C
authors.initials: TC
authors.lastname: Awes
authors.forename: M L
authors.initials: ML
authors.lastname: Brooks
authors.forename: C N
authors.initials: CN
authors.lastname: Brown
authors.forename: J D
authors.initials: JD
authors.lastname: Bush
authors.forename: T A
authors.initials: TA
authors.lastname: Carey
authors.forename: T H
authors.initials: TH
authors.lastname: Chang
authors.forename: W E
authors.initials: WE
authors.lastname: Cooper
authors.forename: C A
authors.initials: CA
authors.lastname: Gagliardi
authors.forename: G T
authors.initials: GT
authors.lastname: Garvey
authors.forename: D F
authors.initials: DF
authors.lastname: Geesaman
authors.forename: E A
authors.initials: EA
authors.lastname: Hawker
authors.forename: X C
authors.initials: XC
authors.lastname: He
authors.forename: L D
authors.initials: LD
authors.lastname: Isenhower
authors.forename: D M
authors.initials: DM
authors.lastname: Kaplan
authors.forename: S B
authors.initials: SB
authors.lastname: Kaufman
authors.forename: S A
authors.initials: SA
authors.lastname: Klinksiek
authors.forename: D D
authors.initials: DD
authors.lastname: Koetke
authors.forename: D M
authors.initials: DM
authors.lastname: Lee
authors.forename: W M
authors.initials: WM
authors.lastname: Lee
authors.forename: M J
authors.initials: MJ
authors.lastname: Leitch
authors.forename: N
authors.initials: N
authors.lastname: Makins
authors.forename: P L
authors.initials: PL
authors.lastname: McGaughey
authors.forename: J M
authors.initials: JM
authors.lastname: Moss
authors.forename: B A
authors.initials: BA
authors.lastname: Mueller
authors.forename: P M
authors.initials: PM
authors.lastname: Nord
authors.forename: V
authors.initials: V
authors.lastname: Papavassiliou
authors.forename: B K
authors.initials: BK
authors.lastname: Park
authors.forename: G
authors.initials: G
authors.lastname: Petitt
authors.forename: M E
authors.initials: ME
authors.lastname: Sadler
authors.forename: W E
authors.initials: WE
authors.lastname: Sondheim
authors.forename: P W
authors.initials: PW
authors.lastname: Stankus
authors.forename: T N
authors.initials: TN
authors.lastname: Thompson
authors.forename: R S
authors.initials: RS
authors.lastname: Towell
authors.forename: R E
authors.initials: RE
authors.lastname: Tribble
authors.forename: M A
authors.initials: MA
authors.lastname: Vasiliev
authors.forename: J C
authors.initials: JC
authors.lastname: Webb
authors.forename: J L
authors.initials: JL
authors.lastname: Willis
authors.forename: D K
authors.initials: DK
authors.lastname: Wise
authors.forename: G R
authors.initials: GR
authors.lastname: Young
mesh_terms: D003903:Deuterium; D019471:Elementary Particle Interactions; D008651:Mesons; D008962:Models, Theoretical; D009038:Motion; D009686:Nuclear Physics; D011522:Protons
chemical_list: D011522:Protons; D003903:Deuterium