Determination of the gluon contribution to the nucleon spin with COMPASS

New double-spin asymmetry data from the COMPASS experiment at CERN are presented. The data are used to determine the polarized gluon distribution $\Delta G/G(x)$, via three different techniques. Next-to-leading order QCD fits to the nucleon polarized structure functions indicate that the first momen...

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Detalles Bibliográficos
Autor principal: Platchkov, Stephane
Lenguaje:eng
Publicado: 2006
Materias:
Particle Physics - Experiment
Acceso en línea:https://dx.doi.org/10.1016/j.nuclphysa.2007.03.162
http://cds.cern.ch/record/1499643
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author Platchkov, Stephane
author_facet Platchkov, Stephane
author_sort Platchkov, Stephane
collection CERN
description New double-spin asymmetry data from the COMPASS experiment at CERN are presented. The data are used to determine the polarized gluon distribution $\Delta G/G(x)$, via three different techniques. Next-to-leading order QCD fits to the nucleon polarized structure functions indicate that the first moment of $\Delta G/G(x)$ is small (either positive or negative) and compatible with zero. This observation is corroborated by three measurements of $\Delta G/G(x), based on the photon-gluon fusion process.
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institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2006
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spelling cern-14996432019-09-30T06:29:59Zdoi:10.1016/j.nuclphysa.2007.03.162http://cds.cern.ch/record/1499643engPlatchkov, StephaneDetermination of the gluon contribution to the nucleon spin with COMPASSParticle Physics - ExperimentNew double-spin asymmetry data from the COMPASS experiment at CERN are presented. The data are used to determine the polarized gluon distribution $\Delta G/G(x)$, via three different techniques. Next-to-leading order QCD fits to the nucleon polarized structure functions indicate that the first moment of $\Delta G/G(x)$ is small (either positive or negative) and compatible with zero. This observation is corroborated by three measurements of $\Delta G/G(x), based on the photon-gluon fusion process.oai:cds.cern.ch:14996432006
spellingShingle Particle Physics - Experiment
Platchkov, Stephane
Determination of the gluon contribution to the nucleon spin with COMPASS
title Determination of the gluon contribution to the nucleon spin with COMPASS
title_full Determination of the gluon contribution to the nucleon spin with COMPASS
title_fullStr Determination of the gluon contribution to the nucleon spin with COMPASS
title_full_unstemmed Determination of the gluon contribution to the nucleon spin with COMPASS
title_short Determination of the gluon contribution to the nucleon spin with COMPASS
title_sort determination of the gluon contribution to the nucleon spin with compass
topic Particle Physics - Experiment
url https://dx.doi.org/10.1016/j.nuclphysa.2007.03.162
http://cds.cern.ch/record/1499643
work_keys_str_mv AT platchkovstephane determinationofthegluoncontributiontothenucleonspinwithcompass

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