Quark and Gluon Orbital Angular Momentum: Where Are We?

Cédric Lorcé, Keh Fei Liu

Research output: Contribution to journalArticlepeer-review


The orbital angular momentum of quarks and gluons contributes significantly to the proton spin budget and attracted a lot of attention in the recent years, both theoretically and experimentally. We summarize the various definitions of parton orbital angular momentum together with their relations with parton distributions functions. In particular, we highlight current theoretical puzzles and give some prospects.

Original languageEnglish
Pages (from-to)379-384
Number of pages6
JournalFew-Body Systems
Issue number6
StatePublished - Jun 1 2016

Bibliographical note

Publisher Copyright:
© 2016, Springer-Verlag Wien.

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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