Double Longitudinal Spin Asymmetry in Neutral Pion Production in Polarized p+p Collisions at {radical}(s) = 200 GeV at PHENIX
Journal Article
·
· AIP Conference Proceedings
- Department of Physics and Astronomy, Stony Brook University, Stony Brook, NY, 11794 (United States)
A major goal of the RHIC spin program is to measure {delta}g, the gluon contribution to the proton's spin. Measurements by PHENIX of the double longitudinal spin asymmetry, ALL, of the neutral pion production at mid-rapidity in polarized proton collisions have been shown to constrain {delta}g. Results from the 2005 RHIC run, as well as high pT data from the 2006 RHIC run, are presented. The results disfavor maximal positive and negative values of {delta}g. A measurement of azimuthally independent double transverse spin asymmetry, ATT, is also presented.
- OSTI ID:
- 21061908
- 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
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