Journal
PHYSICS LETTERS B
Volume 695, Issue 1-4, Pages 275-278Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physletb.2010.11.045
Keywords
Positivity; Single spin asymmetry; Sivers function
Funding
- RIKEN
- Brookhaven National Laboratory
- U.S. Department of Energy [DE-AC02-98CH10886]
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We generalize a positivity constraint derived initially for parity-conserving processes to the parity-violating ones, and use it to derive non-trivial bounds on several Sivers functions, entering in the theoretical description of single spin asymmetry for various processes. (C) 2010 Elsevier B.V. All rights reserved.
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