Positivity Constraints for off-Forward Parton Distributions
arXiv:hep-ph/9804284 · doi:10.1007/s100529901063
Abstract
Off-Forward Parton Distributions (OFPD's) are new hadronic objects which may be measured in various exclusive reactions. We derive non-trivial positivity constraints for them that should allow to get extra restrictions for model inputs.
LaTeX, 10 pages; The extended discussion for various definitions