Inclusive cross section and double helicity asymmetry for π0 production in p+p collisions at s=200GeV: Implications for the polarized gluon distribution in the proton

@article{Collaboration2007InclusiveCS,
  title={Inclusive cross section and double helicity asymmetry for $\pi$0 production in p+p collisions at s=200GeV: Implications for the polarized gluon distribution in the proton},
  author={P. Collaboration and A. Adare and E. al.},
  journal={Physical Review D},
  year={2007},
  volume={76},
  pages={051106}
}
The PHENIX experiment presents results from the Relativistic Heavy Ion Collider 2005 run with polarized proton collisions at sqrt(s)=200 GeV, for inclusive {pi}{sup 0} production at midrapidity. Unpolarized cross section results are given for transverse momenta p{sub T}=0.5 to 20 GeV/c, extending the range of published data to both lower and higher p{sub T}. The cross section is described well for p{sub T} 2 GeV/c, by perturbative QCD. Double helicity asymmetries ALL are presented based on a… Expand

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References

SHOWING 1-6 OF 6 REFERENCES
Phys
  • Rev. D 67, 054005 (2003); M. Glück, E. Reya, M. Stratmann, and W. Vogelsang, Phys. Rev. D 63, 094005
  • 2001
PHENIX has measured parity-violating single helicity asymmetry AL for each polarized beam, which was consistent with zero within statistical uncertainty, in all pT bins
  • S.S. Adler et al., Phys. Rev. C74,
  • 2006
RHIC/CAD Accelerator Physics
  • S.S. Adler et al., Phys. Rev. C74,
  • 2006
Nucl
  • Phys. B597, 337
  • 2001
Phys
  • Lett. B 212, 391 (1988); G. Altarelli and W. J. Stirling, Part. World 1, 40 (1989); R. D. Carlitz, J. C. Collins, and A. H. Mueller, Phys. Lett. B 214, 229
  • 1988