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arXiv · hep-ph/0201030

Disentangling positivity constraints for generalized parton distributions

P. V. Pobylitsa
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Abstract

Positivity constraints are derived for the generalized parton distributions (GPDs) of spin-1/2 hadrons. The analysis covers the full set of eight twist-2 GPDs. Several new inequalities are obtained which constrain GPDs by various combinations of usual (forward) unpolarized and polarized parton distributions including the transversity distribution.

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P. V. Pobylitsa. 2002-06-10. Disentangling positivity constraints for generalized parton distributions. https://doi.org/10.1103/physrevd.65.114015

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