Measurement of Transverse Single-Spin Asymmetries for Mid-rapidity Production of Neutral Pions and Charged Hadrons in Polarized p+p Collisions at sqrt(s) = 200 GeV

Abstract

The transverse single-spin asymmetries of neutral pions and non-identified charged hadrons have been measured at mid-rapidity in polarized proton-proton collisions at sqrt(s) = 200 GeV. The data cover a transverse momentum (p_T) range 0.5-5.0 GeV/c for charged hadrons and 1.0-5.0 GeV/c for neutral pions, at a Feynman-x (x_F) value of approximately zero. The asymmetries seen in this previously unexplored kinematic region are consistent with zero within statistical errors of a few percent. In addition, the inclusive charged hadron cross section at mid-rapidity from 0.5 < p_T < 7.0 GeV/c is presented and compared to NLO pQCD calculations. Successful description of the unpolarized cross section above ~2 GeV/c using NLO pQCD suggests that pQCD is applicable in the interpretation of the asymmetry results in the relevant kinematic range.

331 authors, 6 pages text, 2 figures, 3 tables. Submitted to Phys. Rev. Lett. Plain text data tables for the points plotted in figures for this and previous PHENIX publications are (or will be) publicly available at http://www.phenix.bnl.gov/papers.html

References in corpus (14)

• New Generation of Parton Distributions with Uncertainties from Global QCD Analysis
• Fragmentation of Transversely Polarized Quarks Probed in Transverse Momentum Distributions
• Single-spin asymmetries in semi-inclusive deep-inelastic scattering on a transversely polarized hydrogen target
• Single Transverse-Spin Asymmetries in Hadronic Pion Production
• Observation of a Single-Spin Azimuthal Asymmetry in Semi-Inclusive Pion Electro-Production
• High-p_T Charged Hadron Suppression in Au+Au Collisions at sqrt(s_NN) = 200 GeV
• Mid-Rapidity Neutral Pion Production in Proton-Proto Collisions at sqrt(s_NN) = 200 GeV
• Cross Sections and Transverse Single-Spin Asymmetries in Forward Neutral-Pion Production from Proton Collisions at \sqrt{s} = 200 GeV
• Next-to-leading order QCD corrections to high-p_T pion production in longitudinally polarized pp collisions
• Testing the Universality of Fragmentation Functions
• Chiral-Odd Contribution to Single-Transverse Spin Asymmetry in Hadronic Pion Production
• Sivers Asymmetry and Generalized Parton Distributions in Impact Parameter Space
• Next-to-leading order QCD corrections to one hadron-production in polarized pp collisions at RHIC
• Single-spin azimuthal asymmetry in exclusive electroproduction of pi^+ mesons

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