How Much of the Nucleon Spin is Carried by Glue?

Details How Much of the Nucleon Spin is Carried by Glue? How Much of the Nucleon Spin is Carried by Glue?

1997-02-06

arxiv.org/abs/hep-ph/9702277v2

Phys.Rev.Lett. 79 (1997) 1225-1228

Physics

High Energy Physics

High Energy Physics - Phenomenology

replaced with a couple of reference added and spell-checked

Scientific paper

10.1103/PhysRevLett.79.1225

We estimate in the QCD sum rule approach the amount of the nucleon spin
carried by the gluon angular momentum: the sum of the gluon spin and orbital
angular momenta. The result indicates that gluons contribute at least one half
of the nucleon spin at scale of 1 GeV^2.

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