Parton Orbital Angular Momentum [PDF]
Matthias BurkardtDefinitions of orbital angular momentum based on transverse momentum dependent parton distributions (TMDs) are compared with other definitions. The difference between the manifestly gauge invariant local definition and the TMD based definition can be interpreted as the change in orbital angular momentum as it leaves the target in a DIS experiment.View original: http://arxiv.org/abs/1205.2916
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