Quark and Gluon Orbital Angular Momentum and Spin in Hard Processes

Details Quark and Gluon Orbital Angular Momentum and Spin in Hard Processes Quark and Gluon Orbital Angular Momentum and Spin in Hard Processes

1998-04-24

arxiv.org/abs/hep-ph/9804397v2

Nucl.Phys.B536:303-317,1998

Physics

High Energy Physics

High Energy Physics - Phenomenology

16 pages, no figures, RevTeX

Scientific paper

10.1016/S0550-3213(98)00559-8

We suggest a method of constructing gauge invariant quark and gluon distributions that describe an abstract QCD observable and apply this method to analyze angular momentum of a hadron. In addition to the known quark and gluon polarized structure functions, we obtain gauge invariant distributions for quark and gluon orbital angular momenta, and consider some basic properties of these distributions and their moments.

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