Double Longitudinal Spin Asymmetry of Heavy Quark Production in the Polarized p+p Collisions at RHIC

Journal Article · Wed Jun 13 04:00:00 EDT 2007 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2750828· OSTI ID:21063966

Mingxiong, Liu ^[1]

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1. Physics Division, Los Alamos National Laboratory, Los Alamos, NM 87545 (United States)

Understanding the contribution of the polarized gluons to the proton spin is one of the key steps toward resolving the nucleon spin crisis. At RHIC energy, heavy quark production is dominated by gluon-gluon interaction, thus measurements of the heavy flavor production in the polarized p+p collisions will allow us to directly access the polarized gluon distribution. During the recent polarized p+p run in 2006, the PHENIX experiment collected 7.5pb-1 data with average longitudinal beam polarization {approx} 60%, and successfully reconstructed about 20K J/{psi} candidates from the level-2 trigger filtered data. We present the latest results of ALL in J/{psi} production in the longitudinally polarized p+p collisions at {radical}(s) 200GeV.

• OSTI ID: 21063966
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 915; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ASYMMETRY
B QUARKS
BROOKHAVEN RHIC
C QUARKS
DISTRIBUTION
FLAVOR MODEL
GLUON-GLUON INTERACTIONS
GLUONS
J PSI-3097 MESONS
MULTIPARTICLE SPECTROMETERS
PARTICLE IDENTIFICATION
PARTICLE PRODUCTION
POLARIZATION
PROTON-PROTON INTERACTIONS
PROTONS
SPIN
T QUARKS