Journal
PHYSICS LETTERS B
Volume 796, Issue -, Pages 47-51Publisher
ELSEVIER
DOI: 10.1016/j.physletb.2019.07.033
Keywords
Nucleon structure; Angular momentum; Energy momentum tensor form factors
Funding
- National Science Foundation [1812423]
- U.S. Department of Energy [DE-FG02-04ER41309]
- U.S. Department of Energy (DOE) [DE-FG02-04ER41309] Funding Source: U.S. Department of Energy (DOE)
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The energy-momentum tensor form factors contain a wealth of information about the nucleon. It is insightful to visualize this information in terms of 3D or 2D densities related by Fourier transformations to the form factors. The densities associated with the angular momentum distribution were recently shown to receive monopole and quadrupole contributions. We show that these two contributions are uniquely related to each other. The quadrupole contribution can be viewed as induced by the monopole contribution, and contains no independent information. Both contributions however play important roles for the visualization of the angular momentum density. (C) 2019 The Author(s). Published by Elsevier B.V.
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