Physics – High Energy Physics – High Energy Physics - Experiment
Scientific paper
2009-11-14
Phys.Rev.D80:111108,2009
Physics
High Energy Physics
High Energy Physics - Experiment
6 pages, 3 figures, submitted to Phys. Rev. D (RC)
Scientific paper
10.1103/PhysRevD.80.111108
We report a measurement of the longitudinal double-spin asymmetry A_LL and the differential cross section for inclusive Pi0 production at midrapidity in polarized proton collisions at sqrt(s) = 200 GeV. The cross section was measured over a transverse momentum range of 1 < p_T < 17 GeV/c and found to be in good agreement with a next-to-leading order perturbative QCD calculation. The longitudinal double-spin asymmetry was measured in the range of 3.7 < p_T < 11 GeV/c and excludes a maximal positive gluon polarization in the proton. The mean transverse momentum fraction of Pi0's in their parent jets was found to be around 0.7 for electromagnetically triggered events.
Abelev Betty I.
The STAR Collaboration
No associations
LandOfFree
Longitudinal double-spin asymmetry and cross section for inclusive neutral pion production at midrapidity in polarized proton collisions at sqrt(s) = 200 GeV does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Longitudinal double-spin asymmetry and cross section for inclusive neutral pion production at midrapidity in polarized proton collisions at sqrt(s) = 200 GeV, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Longitudinal double-spin asymmetry and cross section for inclusive neutral pion production at midrapidity in polarized proton collisions at sqrt(s) = 200 GeV will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-113632