Pion parton distribution function in the valence region

Journal Article · Thu Dec 15 00:00:00 EST 2005 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PhysRevC.72.065203· OSTI ID:20771143

Wijesooriya, K; Reimer, P E; Holt, R J ^[1]

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1. Physics Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)

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 parametrization 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.

• OSTI ID: 20771143
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 72, Issue 6; Other Information: DOI: 10.1103/PhysRevC.72.065203; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CORRECTIONS
DISTRIBUTION
DISTRIBUTION FUNCTIONS
DRELL MODEL
FERMILAB
NUCLEONS
PIONS
QUANTUM CHROMODYNAMICS
STRUCTURE FUNCTIONS
VALENCE