Statistical description of the proton spin with a large gluon helicity distribution

Statistical description of the proton spin with a large gluon helicity distribution

The quantum statistical parton distributions approach proposed more than one decade ago is revisited by considering a larger set of recent and accurate Deep Inelastic Scattering (DIS) experimental results. It enables us to improve the description of the data by means of a new determination of the pa...

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Main Authors: Claude Bourrely, Jacques Soffer
Format: Article
Language:English
Published: Elsevier 2015-01-01
Series:Physics Letters B
Online Access:http://www.sciencedirect.com/science/article/pii/S0370269314008466
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spelling doaj-dd4ca71bfa4e49c1addd85187f9548232020-11-24T21:06:47ZengElsevierPhysics Letters B0370-26932015-01-01740168171Statistical description of the proton spin with a large gluon helicity distributionClaude Bourrely0Jacques Soffer1Aix-Marseille Université, Département de Physique, Faculté des Sciences site de Luminy, 13288 Marseille cedex 09, FrancePhysics Department, Temple University, 1835 N, 12th Street, Philadelphia, PA 19122-6082, USAThe quantum statistical parton distributions approach proposed more than one decade ago is revisited by considering a larger set of recent and accurate Deep Inelastic Scattering (DIS) experimental results. It enables us to improve the description of the data by means of a new determination of the parton distributions. We will see that a large gluon polarization emerges, giving a significant contribution to the proton spin. Keywords: Gluon polarization, Proton spin, Statistical distributionshttp://www.sciencedirect.com/science/article/pii/S0370269314008466
collection DOAJ
language English
format Article
sources DOAJ
author Claude Bourrely
Jacques Soffer
spellingShingle Claude Bourrely
Jacques Soffer
Statistical description of the proton spin with a large gluon helicity distribution
Physics Letters B
author_facet Claude Bourrely
Jacques Soffer
author_sort Claude Bourrely
title Statistical description of the proton spin with a large gluon helicity distribution
title_short Statistical description of the proton spin with a large gluon helicity distribution
title_full Statistical description of the proton spin with a large gluon helicity distribution
title_fullStr Statistical description of the proton spin with a large gluon helicity distribution
title_full_unstemmed Statistical description of the proton spin with a large gluon helicity distribution
title_sort statistical description of the proton spin with a large gluon helicity distribution
publisher Elsevier
series Physics Letters B
issn 0370-2693
publishDate 2015-01-01
description The quantum statistical parton distributions approach proposed more than one decade ago is revisited by considering a larger set of recent and accurate Deep Inelastic Scattering (DIS) experimental results. It enables us to improve the description of the data by means of a new determination of the parton distributions. We will see that a large gluon polarization emerges, giving a significant contribution to the proton spin. Keywords: Gluon polarization, Proton spin, Statistical distributions
url http://www.sciencedirect.com/science/article/pii/S0370269314008466
work_keys_str_mv AT claudebourrely statisticaldescriptionoftheprotonspinwithalargegluonhelicitydistribution
AT jacquessoffer statisticaldescriptionoftheprotonspinwithalargegluonhelicitydistribution
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