6533b7dafe1ef96bd126f211

RESEARCH PRODUCT

Quark Contributions to Nucleon Momentum and Spin from Domain Wall fermion calculations

S. N. SyritsynJ. R. GreenJ. W. NegeleA. V. PochinskyM. EngelhardtPh. HaglerB. MuschW. Schroers

subject

High Energy Physics - LatticeHigh Energy Physics::LatticeHigh Energy Physics::PhenomenologyNuclear TheoryHigh Energy Physics::ExperimentNuclear Experiment

description

We report contributions to the nucleon spin and momentum from light quarks calculated using dynamical domain wall fermions with pion masses down to 300 MeV and fine lattice spacing a=0.084 fm. Albeit without disconnected diagrams, we observe that spin and orbital angular momenta of both u and d quarks are opposite, almost canceling in the case of the d quark, which agrees with previous calculations using a mixed quark action. We also present the full momentum dependence of n=2 generalized form factors showing little variation with the pion mass.

yearjournalcountryeditionlanguage
2011-11-02
http://arxiv.org/abs/1111.0718