Positivity Constraints for Spin-Dependent Parton Distributions
classification
✦ hep-ph
keywords
constraintspartonpositivityspin-dependentallowedchiral-oddconsidederive
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We derive new positivity constraints on the spin-dependent structure functions of the nucleon. These model independent results reduce conside\-rably their domain of allowed values, in particular for the chiral-odd parton distribution $h_1 (x)$.
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