Perturbative generation of a strange-quark asymmetry in the nucleon

Autores
Catani, Stefano; de Florian, Daniel Enrique; Rodrigo, Germán; Vogelsang, Werner
Año de publicación
2004
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The perturbative evolution in QCD at three loops generates a stragne-antistrang asymmetry in the nucleons was analyzed. It was found that non-singlet evolution of the parton densities at three loops generates a strange asymmetry even if it was not present at the input scale. It was also observed that the effect arises because at that order of perturbation theory the probability of splitting q → q-1 and became different from that of q → q-1 and because the nucleon has u and d valence densities. The results show that the asymmetries were smaller than in the strange sector, mostly due to the larger initial scale.
Fil: Catani, Stefano. Università degli Studi di Firenze; Italia
Fil: de Florian, Daniel Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina
Fil: Rodrigo, Germán. Csic-uv - Instituto de F& Alemania
Fil: Vogelsang, Werner. Riken Bnl Research Center; Alemania
Materia
Strange
Asymmetry
Perturbative
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/75107
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/75107
network_acronym_str CONICETDig
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network_name_str CONICET Digital (CONICET)
spelling Perturbative generation of a strange-quark asymmetry in the nucleonCatani, Stefanode Florian, Daniel EnriqueRodrigo, GermánVogelsang, WernerStrangeAsymmetryPerturbativehttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1The perturbative evolution in QCD at three loops generates a stragne-antistrang asymmetry in the nucleons was analyzed. It was found that non-singlet evolution of the parton densities at three loops generates a strange asymmetry even if it was not present at the input scale. It was also observed that the effect arises because at that order of perturbation theory the probability of splitting q → q-1 and became different from that of q → q-1 and because the nucleon has u and d valence densities. The results show that the asymmetries were smaller than in the strange sector, mostly due to the larger initial scale.Fil: Catani, Stefano. Università degli Studi di Firenze; ItaliaFil: de Florian, Daniel Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; ArgentinaFil: Rodrigo, Germán. Csic-uv - Instituto de F& AlemaniaFil: Vogelsang, Werner. Riken Bnl Research Center; AlemaniaAmerican Physical Society2004-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/75107Catani, Stefano; de Florian, Daniel Enrique; Rodrigo, Germán; Vogelsang, Werner; Perturbative generation of a strange-quark asymmetry in the nucleon; American Physical Society; Physical Review Letters; 93; 15; 10-2004; 1-40031-9007CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevLett.93.152003info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:58:51Zoai:ri.conicet.gov.ar:11336/75107instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 09:58:52.146CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Perturbative generation of a strange-quark asymmetry in the nucleon
title Perturbative generation of a strange-quark asymmetry in the nucleon
spellingShingle Perturbative generation of a strange-quark asymmetry in the nucleon
Catani, Stefano
Strange
Asymmetry
Perturbative
title_short Perturbative generation of a strange-quark asymmetry in the nucleon
title_full Perturbative generation of a strange-quark asymmetry in the nucleon
title_fullStr Perturbative generation of a strange-quark asymmetry in the nucleon
title_full_unstemmed Perturbative generation of a strange-quark asymmetry in the nucleon
title_sort Perturbative generation of a strange-quark asymmetry in the nucleon
dc.creator.none.fl_str_mv Catani, Stefano
de Florian, Daniel Enrique
Rodrigo, Germán
Vogelsang, Werner
author Catani, Stefano
author_facet Catani, Stefano
de Florian, Daniel Enrique
Rodrigo, Germán
Vogelsang, Werner
author_role author
author2 de Florian, Daniel Enrique
Rodrigo, Germán
Vogelsang, Werner
author2_role author
author
author
dc.subject.none.fl_str_mv Strange
Asymmetry
Perturbative
topic Strange
Asymmetry
Perturbative
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The perturbative evolution in QCD at three loops generates a stragne-antistrang asymmetry in the nucleons was analyzed. It was found that non-singlet evolution of the parton densities at three loops generates a strange asymmetry even if it was not present at the input scale. It was also observed that the effect arises because at that order of perturbation theory the probability of splitting q → q-1 and became different from that of q → q-1 and because the nucleon has u and d valence densities. The results show that the asymmetries were smaller than in the strange sector, mostly due to the larger initial scale.
Fil: Catani, Stefano. Università degli Studi di Firenze; Italia
Fil: de Florian, Daniel Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina
Fil: Rodrigo, Germán. Csic-uv - Instituto de F& Alemania
Fil: Vogelsang, Werner. Riken Bnl Research Center; Alemania
description The perturbative evolution in QCD at three loops generates a stragne-antistrang asymmetry in the nucleons was analyzed. It was found that non-singlet evolution of the parton densities at three loops generates a strange asymmetry even if it was not present at the input scale. It was also observed that the effect arises because at that order of perturbation theory the probability of splitting q → q-1 and became different from that of q → q-1 and because the nucleon has u and d valence densities. The results show that the asymmetries were smaller than in the strange sector, mostly due to the larger initial scale.
publishDate 2004
dc.date.none.fl_str_mv 2004-10
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/75107
Catani, Stefano; de Florian, Daniel Enrique; Rodrigo, Germán; Vogelsang, Werner; Perturbative generation of a strange-quark asymmetry in the nucleon; American Physical Society; Physical Review Letters; 93; 15; 10-2004; 1-4
0031-9007
CONICET Digital
CONICET
url http://hdl.handle.net/11336/75107
identifier_str_mv Catani, Stefano; de Florian, Daniel Enrique; Rodrigo, Germán; Vogelsang, Werner; Perturbative generation of a strange-quark asymmetry in the nucleon; American Physical Society; Physical Review Letters; 93; 15; 10-2004; 1-4
0031-9007
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevLett.93.152003
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv American Physical Society
publisher.none.fl_str_mv American Physical Society
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1842269547498831872
score 13.13397

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