Interplay of Spin and Orbital Angular Momentum in the Proton

Abstract

We derive the consequences of the Myhrer-Thomas explanation of the proton spin problem for the distribution of orbital angular momentum on the valence and sea quarks. After QCD evolution these results are found to be in very good agreement with both recent lattice QCD calculations and the experimental constraints from Hermes and JLab.

References in corpus (3)

• Inclusive cross section and double helicity asymmetry for π^0 production in p+p collisions at sqrt(s)=200 GeV: Implications for the polarized gluon distribution in the proton
• Transversity quark distributions in a covariant quark-diquark model
• Phenomenological analysis of the nucleon spin contents and their scale dependence