Consistent gauge invariant nucleon spin decomposition

Details Consistent gauge invariant nucleon spin decomposition Consistent gauge invariant nucleon spin decomposition

2012-04-23

arxiv.org/abs/1204.5030v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

Talk given at XIV International Workshop on High Energy Physics "DSPIN-11", Dubna, Russia, September 20 - 24, 2011

Scientific paper

We consider a non-uniqueness problem of gauge invariant nucleon spin decomposition. A gauge invariant decomposition with a generalized Coulomb constraint for the physical gluon has been constructed. The decomposition scheme is consistent with the concept of helicity in non-Abelian gauge theory. We provide an explicit representation for the gauge invariant Abelian projection which implies further separation of gluon into binding and valence parts.

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