Fixed poles, polarized glue and nucleon spin structure

Details Fixed poles, polarized glue and nucleon spin structure Fixed poles, polarized glue and nucleon spin structure

2003-11-13

arxiv.org/abs/hep-ph/0311174v1

Acta Phys.Polon. B34 (2003) 5893-5926

Physics

High Energy Physics

High Energy Physics - Phenomenology

34 pages, Presented at the 43rd Cracow School of Theoretical Physics: Fundamental Interactions, Zakopane, Poland May 30 - June

Scientific paper

We review the theory and present status of the proton spin problem with emphasis on possible gluonic and sea contributions. We discuss the possibility of a J=1 fixed pole correction to the Ellis-Jaffe sum rule for polarized deep inelastic scattering. Fixed poles in the real part of the forward Compton scattering amplitude have the potential to induce subtraction constant corrections to sum rules for photon nucleon scattering.

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