New positivity bounds on polarized parton distributions in multicolored QCD

Abstract

We derive new positivity bounds on spin-dependent parton distributions in multicolored QCD. They are stronger than Soffer inequality. We check that the new inequalities are stable under one-loop DGLAP evolution to higher normalization points.

4 pages, typos corrected, more details, references added

References in corpus (2)

• Chiral Symmetry and the Nucleon Spin Structure Functions
• On positivity of parton distributions

Cited by in corpus (6)

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• Spin-flavor structure of chiral-odd GPDs in the large-N_c limit