kT Asymmetry in Longitudinally Polarized p + p Collisions in PHENIX

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

DOI:https://doi.org/10.1063/1.2750860· OSTI ID:21063996

Fields, Douglas ^[1]

---

1. University of New Mexico (United States)

We examine the helicity dependence of partonic transverse momentum kT derived from di-hadron azimuthal correlations in longitudinally polarized p+p collisions in PHENIX data from RHIC Run 5. The motivation is to explore the possible contribution of partonic orbital angular momentum to the measured intrinsic kT as described in [1]. We follow the analysis procedure described in [2] that relates the width of the away-side peak in the azimuthal two-particle distributions to the total transverse momentum of the di-jet. The asymmetry of {delta} {radical}(<k{sub T}>) = 672 {+-} 387 MeV/c is found to be large, but with limited statistical significance.

• OSTI ID: 21063996
• 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
ANGULAR CORRELATION
ASYMMETRY
BROOKHAVEN RHIC
COLLIDING BEAMS
DISTRIBUTION
GLUONS
HADRONS
HELICITY
JET MODEL
MEV RANGE
MULTIPARTICLE SPECTROMETERS
ORBITAL ANGULAR MOMENTUM
PARTICLE IDENTIFICATION
POLARIZED BEAMS
PROTON-ANTIPROTON INTERACTIONS
QUARKS
TRANSVERSE MOMENTUM