Polarized Quarks, Gluons and Sea in Nucleon Structure Functions

Details Polarized Quarks, Gluons and Sea in Nucleon Structure Functions Polarized Quarks, Gluons and Sea in Nucleon Structure Functions

1998-03-03

arxiv.org/abs/hep-ph/9803229v2

Prog.Theor.Phys. 99 (1998) 1017-1030

Physics

High Energy Physics

High Energy Physics - Phenomenology

19 pages, LateX, 6 figures. Figures included in the text

Scientific paper

10.1143/PTP.99.1017

We perform a NLO analysis of polarized deep inelastic scattering data to test two different solutions to the so called spin crisis: one of them based on the axial gluon anomaly and consistent with the Bjorken sum rule and another one, where the defects in the spin sum rules and in the Gottfried sum rule are related. In this case a defect is also expected for the Bjorken sum rule. The first solution is slightly favoured by the SLAC E154 results, but both options seem to be consistent with the CERN SMC data.

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