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.
- Publication:
-
Physical Review Letters
- Pub Date:
- September 2008
- DOI:
- 10.1103/PhysRevLett.101.102003
- arXiv:
- arXiv:0803.2775
- Bibcode:
- 2008PhRvL.101j2003T
- Keywords:
-
- 14.20.Dh;
- 12.39.Ki;
- 13.60.Hb;
- 13.88.+e;
- Protons and neutrons;
- Relativistic quark model;
- Total and inclusive cross sections;
- Polarization in interactions and scattering;
- High Energy Physics - Phenomenology
- E-Print:
- Phys.Rev.Lett.101:102003,2008