Skyrmions in the presence of isospin chemical potential

Autores
Ponciano, Juan Adolfo; Scoccola, Norberto Nerio
Año de publicación
2008
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We analyze the existence of localized finite energy topological excitations  on top of the perturbative pion vacuum within the Skyrme model at finite  isospin chemical potential and finite pion mass. We show that there is a  critical isospin chemical potential mu^c_I above which such solutions cease  to exist. We find that mu^c_I is closely related to the value of the pion mass.  In particular, for vanishing pion mass we obtain mu^c_I = 0 in contradiction  with some results recently reported in the literature. We also find that  below mu^c_I the skyrmion mass and baryon radius show, at least for the case  of the hedgehog ansatz, only a mild dependence on the isospin chemical potential.
Fil: Ponciano, Juan Adolfo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Plata; Argentina. Centro de Física y Matemática de America del Sur; Argentina
Fil: Scoccola, Norberto Nerio. Universidad Favaloro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Materia
Skyrmions
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/244093
Acceder
id CONICETDig_c00211ca65acef2c14d486dfd622b49d
oai_identifier_str oai:ri.conicet.gov.ar:11336/244093
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Skyrmions in the presence of isospin chemical potentialPonciano, Juan AdolfoScoccola, Norberto NerioSkyrmionshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We analyze the existence of localized finite energy topological excitations  on top of the perturbative pion vacuum within the Skyrme model at finite  isospin chemical potential and finite pion mass. We show that there is a  critical isospin chemical potential mu^c_I above which such solutions cease  to exist. We find that mu^c_I is closely related to the value of the pion mass.  In particular, for vanishing pion mass we obtain mu^c_I = 0 in contradiction  with some results recently reported in the literature. We also find that  below mu^c_I the skyrmion mass and baryon radius show, at least for the case  of the hedgehog ansatz, only a mild dependence on the isospin chemical potential.Fil: Ponciano, Juan Adolfo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Plata; Argentina. Centro de Física y Matemática de America del Sur; ArgentinaFil: Scoccola, Norberto Nerio. Universidad Favaloro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaElsevier Science2008-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/244093Ponciano, Juan Adolfo; Scoccola, Norberto Nerio; Skyrmions in the presence of isospin chemical potential; Elsevier Science; Physics Letters B; 659; 3; 1-2008; 551-5540370-2693CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0370269307014591info:eu-repo/semantics/altIdentifier/doi/10.1016/j.physletb.2007.11.047info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:00:50Zoai:ri.conicet.gov.ar:11336/244093instacron: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 10:00:51.121CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Skyrmions in the presence of isospin chemical potential
title Skyrmions in the presence of isospin chemical potential
spellingShingle Skyrmions in the presence of isospin chemical potential
Ponciano, Juan Adolfo
Skyrmions
title_short Skyrmions in the presence of isospin chemical potential
title_full Skyrmions in the presence of isospin chemical potential
title_fullStr Skyrmions in the presence of isospin chemical potential
title_full_unstemmed Skyrmions in the presence of isospin chemical potential
title_sort Skyrmions in the presence of isospin chemical potential
dc.creator.none.fl_str_mv Ponciano, Juan Adolfo
Scoccola, Norberto Nerio
author Ponciano, Juan Adolfo
author_facet Ponciano, Juan Adolfo
Scoccola, Norberto Nerio
author_role author
author2 Scoccola, Norberto Nerio
author2_role author
dc.subject.none.fl_str_mv Skyrmions
topic Skyrmions
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We analyze the existence of localized finite energy topological excitations  on top of the perturbative pion vacuum within the Skyrme model at finite  isospin chemical potential and finite pion mass. We show that there is a  critical isospin chemical potential mu^c_I above which such solutions cease  to exist. We find that mu^c_I is closely related to the value of the pion mass.  In particular, for vanishing pion mass we obtain mu^c_I = 0 in contradiction  with some results recently reported in the literature. We also find that  below mu^c_I the skyrmion mass and baryon radius show, at least for the case  of the hedgehog ansatz, only a mild dependence on the isospin chemical potential.
Fil: Ponciano, Juan Adolfo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Plata; Argentina. Centro de Física y Matemática de America del Sur; Argentina
Fil: Scoccola, Norberto Nerio. Universidad Favaloro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
description We analyze the existence of localized finite energy topological excitations  on top of the perturbative pion vacuum within the Skyrme model at finite  isospin chemical potential and finite pion mass. We show that there is a  critical isospin chemical potential mu^c_I above which such solutions cease  to exist. We find that mu^c_I is closely related to the value of the pion mass.  In particular, for vanishing pion mass we obtain mu^c_I = 0 in contradiction  with some results recently reported in the literature. We also find that  below mu^c_I the skyrmion mass and baryon radius show, at least for the case  of the hedgehog ansatz, only a mild dependence on the isospin chemical potential.
publishDate 2008
dc.date.none.fl_str_mv 2008-01
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/11336/244093
Ponciano, Juan Adolfo; Scoccola, Norberto Nerio; Skyrmions in the presence of isospin chemical potential; Elsevier Science; Physics Letters B; 659; 3; 1-2008; 551-554
0370-2693
CONICET Digital
CONICET
url http://hdl.handle.net/11336/244093
identifier_str_mv Ponciano, Juan Adolfo; Scoccola, Norberto Nerio; Skyrmions in the presence of isospin chemical potential; Elsevier Science; Physics Letters B; 659; 3; 1-2008; 551-554
0370-2693
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0370269307014591
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.physletb.2007.11.047
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
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_ 1842269663237505024
score 13.13397

Publicaciones similares