6533b7d0fe1ef96bd125a52d
RESEARCH PRODUCT
Proton spin and the cheshire cat principle
B.-y. ParkVicente Ventosubject
PhysicsNuclear and High Energy PhysicsProtonHigh Energy Physics::LatticeHigh Energy Physics::PhenomenologyNuclear TheoryQuantum numberAtomic and Molecular Physics and OpticsGluonQuantum electrodynamicsProton spin crisisAxial currentMatrix elementAnomaly (physics)description
Abstract We discuss the proton matrix element of the flavor-singlet axial current (FSAC), often referred to as proton spin, in terms of the chiral bag model with due account of the axial anomaly and quantum number fractionation. We conclude that the contribution due to gluons is significant for large bag radii and that it is crucial in order to establish the Cheshire cat principle.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1991-09-01 | Nuclear Physics B - Proceedings Supplements |