Forward Neutral Pion Transverse Single Spin Asymmetries in p+p Collisions at sqrt s = 200 GeV Metadata

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Title

  • Main Title Forward Neutral Pion Transverse Single Spin Asymmetries in p+p Collisions at sqrt s = 200 GeV

Creator

  • Author: STAR Collaboration
    Creator Type: Organization
    Creator Info: STAR Coll

Contributor

  • Sponsor: Lawrence Berkeley National Laboratory. Nuclear Science Division.
    Contributor Type: Organization

Publisher

  • Name: Lawrence Berkeley National Laboratory
    Place of Publication: Berkeley, California
    Additional Info: Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA (United States)

Date

  • Creation: 2008-11-26

Language

  • English

Description

  • Content Description: We report precision measurements of the Feynman-x (x{sub F}) dependence, and first measurements of the transverse momentum (p{sub T}) dependence, of transverse single spin asymmetries for the production of {pi}{sup 0} mesons from polarized proton collisions at {radical}s = 200 GeV. The x{sub F} dependence of the results are in fair agreement with perturbative QCD (pQCD) model calculations that identify orbital motion of quarks and gluons within the proton as the origin of the spin effects. Results for the p{sub T} dependence at fixed x{sub F} are not consistent with these same pQCD-based calculations.

Subject

  • Keyword: Origin
  • Keyword: Protons
  • Keyword: Quantum Chromodynamics
  • Keyword: Gluons
  • Keyword: Transverse Momentum
  • Keyword: Quarks
  • Keyword: Mesons
  • Keyword: Production
  • Keyword: Pions
  • STI Subject Categories: 73
  • Keyword: Spin
  • Keyword: Accuracy

Source

  • Journal Name: Physical Review Letter

Collection

  • Name: Office of Scientific & Technical Information Technical Reports
    Code: OSTI

Institution

  • Name: UNT Libraries Government Documents Department
    Code: UNTGD

Resource Type

  • Article

Format

  • Text

Identifier

  • Report No.: LBNL-2105E
  • Grant Number: DE-AC02-05CH11231
  • Office of Scientific & Technical Information Report Number: 963332
  • Archival Resource Key: ark:/67531/metadc928106
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