How Much of the Nucleon Spin is Carried by Glue?
- 18 August 1997
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 79 (7) , 1225-1228
- https://doi.org/10.1103/physrevlett.79.1225
Abstract
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 the scale of .
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