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Title: Re-evaluation of the Gottfried sum using neural networks

Abstract

We provide a determination of the Gottfried sum from all available data, based on a neural network parametrization of the nonsinglet structure function F{sub 2}. We find S{sub G}=0.244{+-}0.045, closer to the quark model expectation S{sub G}=(1/3) than previous results. We show that the uncertainty from the small x region is somewhat underestimated in previous determinations.

Authors:
 [1];  [1];  [2]
  1. Dipartimento di Fisica, Universita di Milan (Italy)
  2. (Italy)
Publication Date:
OSTI Identifier:
20774474
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. D, Particles Fields; Journal Volume: 72; Journal Issue: 11; Other Information: DOI: 10.1103/PhysRevD.72.117503; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; EVALUATION; NEURAL NETWORKS; PARTICLE KINEMATICS; PARTICLE STRUCTURE; QUARK MODEL; STRUCTURE FUNCTIONS

Citation Formats

Abbate, Riccardo, Forte, Stefano, and INFN, Sezione di Milano, Via Celoria 16, I-20133 Milan. Re-evaluation of the Gottfried sum using neural networks. United States: N. p., 2005. Web. doi:10.1103/PhysRevD.72.117503.
Abbate, Riccardo, Forte, Stefano, & INFN, Sezione di Milano, Via Celoria 16, I-20133 Milan. Re-evaluation of the Gottfried sum using neural networks. United States. doi:10.1103/PhysRevD.72.117503.
Abbate, Riccardo, Forte, Stefano, and INFN, Sezione di Milano, Via Celoria 16, I-20133 Milan. Thu . "Re-evaluation of the Gottfried sum using neural networks". United States. doi:10.1103/PhysRevD.72.117503.
@article{osti_20774474,
title = {Re-evaluation of the Gottfried sum using neural networks},
author = {Abbate, Riccardo and Forte, Stefano and INFN, Sezione di Milano, Via Celoria 16, I-20133 Milan},
abstractNote = {We provide a determination of the Gottfried sum from all available data, based on a neural network parametrization of the nonsinglet structure function F{sub 2}. We find S{sub G}=0.244{+-}0.045, closer to the quark model expectation S{sub G}=(1/3) than previous results. We show that the uncertainty from the small x region is somewhat underestimated in previous determinations.},
doi = {10.1103/PhysRevD.72.117503},
journal = {Physical Review. D, Particles Fields},
number = 11,
volume = 72,
place = {United States},
year = {Thu Dec 01 00:00:00 EST 2005},
month = {Thu Dec 01 00:00:00 EST 2005}
}