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Are Parton Distributions Positive?

We show that the naive positivity conditions on polarized parton distributions which follow from their probabilistic interpretation in the naive parton model are reproduced in perturbative QCD at the leading log level if the quark and gluon distribution are defined in terms of physical processes. We...

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Detalles Bibliográficos
Autores principales: Forte, Stefano, Altarelli, Guido, Ridolfi, Giovanni
Lenguaje:eng
Publicado: 1998
Materias:
Acceso en línea:https://dx.doi.org/10.1016/S0920-5632(99)00150-4
http://cds.cern.ch/record/363512