Statistical Inspired Parton Distributions and the Violation of QPM Sum Rules

A quantum statistical parametrization of parton distributions has been considered. In this framework, the exclusion Pauli principle connects the violation of the Gottfried sum rule with the Ellis and Jaffe one, and implies a defect in the Bjorken sum rule. However, in terms of standard parametrizati...

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Bibliographic Details
Published in:arXiv.org 1996-07
Main Authors: Buccella, F, I Dor\u{s}ner, Miele, G, Pisanti, O, Santorelli, P, Tancredi, N
Format: Article
Language:English
Subjects:
Parameterization
Pauli exclusion principle
Quantum statistics
Sum rules
Online Access:Get full text
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Summary:A quantum statistical parametrization of parton distributions has been considered. In this framework, the exclusion Pauli principle connects the violation of the Gottfried sum rule with the Ellis and Jaffe one, and implies a defect in the Bjorken sum rule. However, in terms of standard parametrizations of the polarized distributions a good description of the data is obtained once a large gluon polarization is provided. Interestingly, in this description there is no violation of the Bjorken sum rule.
ISSN:2331-8422