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Inclusive cross section and double helicity asymmetry for \pi^0 production in p+p collisions at sqrt(s)=200 GeV: Implications for the polarized gluon distribution in the proton

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Academic year: 2021

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FIG. 1: The neutral pion production cross section at √ s = 200 GeV as a function of p T (squares) and the results of NLO pQCD calculations for theory scales µ = p T /2 (dotted line), p T (solid line) and 2p T (dashed line), see text for details; note that
FIG. 2: The double helicity asymmetry for neutral pion pro- pro-duction at √ s = 200 GeV as a function of p T (GeV/c)
Figure 3 shows the corresponding χ 2 versus

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