Polarized parton distributions in the nucleon

Journal Article · Sat Jun 01 00:00:00 EDT 1996 · Physical Review, D

DOI:https://doi.org/10.1103/PhysRevD.53.6100· OSTI ID:284561

Gehrmann, T; Stirling, W J ^[1]

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1. Departments of Physics and Mathematical Sciences, University of Durham, Durham DH1 3LE (England)

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.}

• OSTI ID: 284561
• Journal Information: Physical Review, D, Vol. 53, Issue 11; Other Information: PBD: Jun 1996
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
NUCLEONS
PARTONS
DISTRIBUTION FUNCTIONS
DISTRIBUTION
POLARIZATION
SPIN
STRUCTURE FUNCTIONS
PERTURBATION THEORY
GLUONS