The pion parton distribution function in the valence region

Details The pion parton distribution function in the valence region The pion parton distribution function in the valence region

2005-09-08

arxiv.org/abs/nucl-ex/0509012v1

Phys.Rev. C72 (2005) 065203

Physics

Nuclear Physics

Nuclear Experiment

5 pages, 4 figures, submitted to Phys. Rev. C

Scientific paper

10.1103/PhysRevC.72.065203

The parton distribution function of the pion in the valence region is extracted in a next-to-leading order analysis from Fermilab E-615 pionic Drell-Yan data. The effects of the parameterization of the pion's valence distributions are examined. Modern nucleon parton distributions and nuclear corrections were used and possible effects from higher twist contributions were considered in the analysis. In the next-to-leading order analysis, the high-$x$ dependence of the pion structure function differs from that of the leading order analysis, but not enough to agree with the expectations of pQCD and Dyson-Schwinger calculations.

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