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Title: Polarized parton distributions in the nucleon

Abstract

The distribution of the spin of the nucleon among its constituents can be parametrized in the form of polarized parton distribution functions for quarks and gluons. Using all available data on the polarized structure function {ital g}{sub 1}({ital x},{ital Q}{sup 2}), we determine these distributions at both leading and next-to-leading order in perturbation theory. We suggest three different, equally possible scenarios for the polarized gluon distribution, whose {ital x} dependence is found to be only loosely constrained by current experimental data. We examine various possibilities of measuring polarized parton distributions at future experiments. {copyright} {ital 1996 The American Physical Society.}

Authors:
;  [1]
  1. Departments of Physics and Mathematical Sciences, University of Durham, Durham DH1 3LE (England)
Publication Date:
OSTI Identifier:
284561
Resource Type:
Journal Article
Journal Name:
Physical Review, D
Additional Journal Information:
Journal Volume: 53; Journal Issue: 11; Other Information: PBD: Jun 1996
Country of Publication:
United States
Language:
English
Subject:
66 PHYSICS; NUCLEONS; PARTONS; DISTRIBUTION FUNCTIONS; DISTRIBUTION; POLARIZATION; SPIN; STRUCTURE FUNCTIONS; PERTURBATION THEORY; GLUONS

Citation Formats

Gehrmann, T., and Stirling, W.J.. Polarized parton distributions in the nucleon. United States: N. p., 1996. Web. doi:10.1103/PhysRevD.53.6100.
Gehrmann, T., & Stirling, W.J.. Polarized parton distributions in the nucleon. United States. doi:10.1103/PhysRevD.53.6100.
Gehrmann, T., and Stirling, W.J.. Sat . "Polarized parton distributions in the nucleon". United States. doi:10.1103/PhysRevD.53.6100.
@article{osti_284561,
title = {Polarized parton distributions in the nucleon},
author = {Gehrmann, T. and Stirling, W.J.},
abstractNote = {The distribution of the spin of the nucleon among its constituents can be parametrized in the form of polarized parton distribution functions for quarks and gluons. Using all available data on the polarized structure function {ital g}{sub 1}({ital x},{ital Q}{sup 2}), we determine these distributions at both leading and next-to-leading order in perturbation theory. We suggest three different, equally possible scenarios for the polarized gluon distribution, whose {ital x} dependence is found to be only loosely constrained by current experimental data. We examine various possibilities of measuring polarized parton distributions at future experiments. {copyright} {ital 1996 The American Physical Society.}},
doi = {10.1103/PhysRevD.53.6100},
journal = {Physical Review, D},
number = 11,
volume = 53,
place = {United States},
year = {1996},
month = {6}
}