Studying the Sivers function by model calculations

A formalism is presented to evaluate the Sivers function in constituent quark models. A non-relativistic reduction of the scheme is performed and applied to the Isgur-Karl model. The sign for the $u$ and $d$ flavor contributions that we obtained turns out to be opposite. The Burkardt Sum Rule is ful...

Descripción completa

Detalles Bibliográficos
Autores principales: Courtoy, A., Scopetta, S., Vento, V.
Lenguaje:eng
Publicado: 2008
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1063/1.3122171
http://cds.cern.ch/record/1140065
_version_ 1780915529499803648
author Courtoy, A.
Scopetta, S.
Vento, V.
author_facet Courtoy, A.
Scopetta, S.
Vento, V.
author_sort Courtoy, A.
collection CERN
description A formalism is presented to evaluate the Sivers function in constituent quark models. A non-relativistic reduction of the scheme is performed and applied to the Isgur-Karl model. The sign for the $u$ and $d$ flavor contributions that we obtained turns out to be opposite. The Burkardt Sum Rule is fulfilled to a large extent. After the estimate of the QCD evolution of the results from the momentum scale of the model to the experimental one, a reasonable agreement with the available data is obtained.
id cern-1140065
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2008
record_format invenio
spelling cern-11400652021-07-15T01:42:12Zdoi:10.1063/1.3122171http://cds.cern.ch/record/1140065engCourtoy, A.Scopetta, S.Vento, V.Studying the Sivers function by model calculationsParticle Physics - PhenomenologyA formalism is presented to evaluate the Sivers function in constituent quark models. A non-relativistic reduction of the scheme is performed and applied to the Isgur-Karl model. The sign for the $u$ and $d$ flavor contributions that we obtained turns out to be opposite. The Burkardt Sum Rule is fulfilled to a large extent. After the estimate of the QCD evolution of the results from the momentum scale of the model to the experimental one, a reasonable agreement with the available data is obtained.A formalism is presented to evaluate the Sivers function in constituent quark models. A non‐relativistic reduction of the scheme is performed and applied to the Isgur‐Karl model. The sign for the u and d flavor contributions that we obtained turns out to be opposite. The Burkardt Sum Rule is fulfilled to a large extent. After the estimate of the QCD evolution of the results from the momentum scale of the model to the experimental one, a reasonable agreement with the available data is obtained.A formalism is presented to evaluate the Sivers function in constituent quark models. A non-relativistic reduction of the scheme is performed and applied to the Isgur-Karl model. The sign for the $u$ and $d$ flavor contributions that we obtained turns out to be opposite. The Burkardt Sum Rule is fulfilled to a large extent. After the estimate of the QCD evolution of the results from the momentum scale of the model to the experimental one, a reasonable agreement with the available data is obtained.arXiv:0811.2368oai:cds.cern.ch:11400652008-11-17
spellingShingle Particle Physics - Phenomenology
Courtoy, A.
Scopetta, S.
Vento, V.
Studying the Sivers function by model calculations
title Studying the Sivers function by model calculations
title_full Studying the Sivers function by model calculations
title_fullStr Studying the Sivers function by model calculations
title_full_unstemmed Studying the Sivers function by model calculations
title_short Studying the Sivers function by model calculations
title_sort studying the sivers function by model calculations
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1063/1.3122171
http://cds.cern.ch/record/1140065
work_keys_str_mv AT courtoya studyingthesiversfunctionbymodelcalculations
AT scopettas studyingthesiversfunctionbymodelcalculations
AT ventov studyingthesiversfunctionbymodelcalculations

Ejemplares similares