On the Q$^{2}$ dependence of the measured polarized structure functions

We analyse the available data on the polarized asymmetries $A_1$ for proton, neutron and deuteron targets. We use a homogeneous and updated set of unpolarized structure functions to derive $g_1$ from $A_1$, and we accurately correct for the scaling violations in order to obtain $g_1(x,Q~2)$ with the...

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Detalles Bibliográficos
Autores principales: Altarelli, Guido, Nason, P., Ridolfi, G.
Lenguaje:eng
Publicado: 1994
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1016/0370-2693(94)90839-7
http://cds.cern.ch/record/254708
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author Altarelli, Guido
Nason, P.
Ridolfi, G.
author_facet Altarelli, Guido
Nason, P.
Ridolfi, G.
author_sort Altarelli, Guido
collection CERN
description We analyse the available data on the polarized asymmetries $A_1$ for proton, neutron and deuteron targets. We use a homogeneous and updated set of unpolarized structure functions to derive $g_1$ from $A_1$, and we accurately correct for the scaling violations in order to obtain $g_1(x,Q~2)$ with the same $Q~2$ for all $x$ values. The contribution to the $Q~2$ evolution of a possible large gluon polarized density is also considered. The implications for the Ellis-Jaffe and for the Bjorken sum rules are discussed.
id cern-254708
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1994
record_format invenio
spelling cern-2547082021-07-15T01:47:49Zdoi:10.1016/0370-2693(94)90839-7http://cds.cern.ch/record/254708engAltarelli, GuidoNason, P.Ridolfi, G.On the Q$^{2}$ dependence of the measured polarized structure functionsParticle Physics - PhenomenologyWe analyse the available data on the polarized asymmetries $A_1$ for proton, neutron and deuteron targets. We use a homogeneous and updated set of unpolarized structure functions to derive $g_1$ from $A_1$, and we accurately correct for the scaling violations in order to obtain $g_1(x,Q~2)$ with the same $Q~2$ for all $x$ values. The contribution to the $Q~2$ evolution of a possible large gluon polarized density is also considered. The implications for the Ellis-Jaffe and for the Bjorken sum rules are discussed.We analyse the available data on the polarized asymmetries A 1 for proton, neutron and deutron targets. We use a homogeneous and updated set of unpolarized structure functions to derive g 1 from A 1 , and we accurately correct for the scaling violations in order to obtain g 1 ( x , Q 2 ) with the same Q 2 for all x values. The contribution to the Q 2 evolution of a possible large gluon polarized density is also considered. The implications for the Ellis-Jaffe and for the Bjorken sum rules are discussed.hep-ph/9311255CERN-TH-7023-93CERN-TH-7023-93oai:cds.cern.ch:2547081994
spellingShingle Particle Physics - Phenomenology
Altarelli, Guido
Nason, P.
Ridolfi, G.
On the Q$^{2}$ dependence of the measured polarized structure functions
title On the Q$^{2}$ dependence of the measured polarized structure functions
title_full On the Q$^{2}$ dependence of the measured polarized structure functions
title_fullStr On the Q$^{2}$ dependence of the measured polarized structure functions
title_full_unstemmed On the Q$^{2}$ dependence of the measured polarized structure functions
title_short On the Q$^{2}$ dependence of the measured polarized structure functions
title_sort on the q$^{2}$ dependence of the measured polarized structure functions
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1016/0370-2693(94)90839-7
http://cds.cern.ch/record/254708
work_keys_str_mv AT altarelliguido ontheq2dependenceofthemeasuredpolarizedstructurefunctions
AT nasonp ontheq2dependenceofthemeasuredpolarizedstructurefunctions
AT ridolfig ontheq2dependenceofthemeasuredpolarizedstructurefunctions

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