Orbital angular momentum and generalized transverse momentum distribution

Yong Zhao, Keh Fei Liu, Yi Bo Yang

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

We show that, when boosted to the infinite momentum frame, the quark and gluon orbital angular momentum operators defined in the nucleon spin sum rule of Chen et al. are the same as those whose matrix elements correspond to the moments of generalized transverse momentum distributions. This completes the connection between the infinite momentum limit of each term in that sum rule and experimentally measurable observables. We also show that these orbital angular momentum operators can be defined locally and discuss the strategies of calculating them in lattice QCD.

Original languageEnglish
Article number054006
JournalPhysical Review D
Volume93
Issue number5
DOIs
StatePublished - Mar 3 2016

Bibliographical note

Publisher Copyright:
© 2016 American Physical Society.

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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