Diquarks and nucleons under strong magnetic fields in the NJL model
- Autores
- Coppola, Máximo; Gómez Dumm, Daniel Alberto; Scoccola, Norberto Nerio
- Año de publicación
- 2020
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- We study the description of nucleons and diquarks in the presence of a uniform strong magnetic field within the framework of the two-flavor Nambu--Jona-Lasinio model. Diquarks are constructed through the resummation of quark loop chains using the random phase approximation, while nucleons are treated as bound quark-diquark states described by a relativistic Fadeev equation, using the static approximation for quark exchange interactions. For charged particles, analytical calculations are performed using the Ritus eigenfunction method, which properly takes into account the breakdown of translation invariance that arises from the presence of Schwinger phases. Within this scheme, for definite model parametrizations we obtain numerical predictions for diquark and nucleon masses, which are compared with chiral perturbation theory and lattice QCD results. In addition, numerical estimations for nucleon magnetic moments are obtained.
Instituto de Física La Plata - Materia
-
Física
Ciencias Exactas
magnetic field
quantum chromodynamics
Ritus eigenfunction method - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by/4.0/
- Repositorio
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/133308
Ver los metadatos del registro completo
id |
SEDICI_2b07021a53562293d9736e8a8cfaddb8 |
---|---|
oai_identifier_str |
oai:sedici.unlp.edu.ar:10915/133308 |
network_acronym_str |
SEDICI |
repository_id_str |
1329 |
network_name_str |
SEDICI (UNLP) |
spelling |
Diquarks and nucleons under strong magnetic fields in the NJL modelCoppola, MáximoGómez Dumm, Daniel AlbertoScoccola, Norberto NerioFísicaCiencias Exactasmagnetic fieldquantum chromodynamicsRitus eigenfunction methodWe study the description of nucleons and diquarks in the presence of a uniform strong magnetic field within the framework of the two-flavor Nambu--Jona-Lasinio model. Diquarks are constructed through the resummation of quark loop chains using the random phase approximation, while nucleons are treated as bound quark-diquark states described by a relativistic Fadeev equation, using the static approximation for quark exchange interactions. For charged particles, analytical calculations are performed using the Ritus eigenfunction method, which properly takes into account the breakdown of translation invariance that arises from the presence of Schwinger phases. Within this scheme, for definite model parametrizations we obtain numerical predictions for diquark and nucleon masses, which are compared with chiral perturbation theory and lattice QCD results. In addition, numerical estimations for nucleon magnetic moments are obtained.Instituto de Física La Plata2020-11-18info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/133308enginfo:eu-repo/semantics/altIdentifier/issn/2470-0010info:eu-repo/semantics/altIdentifier/issn/2470-0029info:eu-repo/semantics/altIdentifier/doi/10.1103/physrevd.102.094020info:eu-repo/semantics/altIdentifier/arxiv/2009.14105info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International (CC BY 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:31:47Zoai:sedici.unlp.edu.ar:10915/133308Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:31:47.239SEDICI (UNLP) - Universidad Nacional de La Platafalse |
dc.title.none.fl_str_mv |
Diquarks and nucleons under strong magnetic fields in the NJL model |
title |
Diquarks and nucleons under strong magnetic fields in the NJL model |
spellingShingle |
Diquarks and nucleons under strong magnetic fields in the NJL model Coppola, Máximo Física Ciencias Exactas magnetic field quantum chromodynamics Ritus eigenfunction method |
title_short |
Diquarks and nucleons under strong magnetic fields in the NJL model |
title_full |
Diquarks and nucleons under strong magnetic fields in the NJL model |
title_fullStr |
Diquarks and nucleons under strong magnetic fields in the NJL model |
title_full_unstemmed |
Diquarks and nucleons under strong magnetic fields in the NJL model |
title_sort |
Diquarks and nucleons under strong magnetic fields in the NJL model |
dc.creator.none.fl_str_mv |
Coppola, Máximo Gómez Dumm, Daniel Alberto Scoccola, Norberto Nerio |
author |
Coppola, Máximo |
author_facet |
Coppola, Máximo Gómez Dumm, Daniel Alberto Scoccola, Norberto Nerio |
author_role |
author |
author2 |
Gómez Dumm, Daniel Alberto Scoccola, Norberto Nerio |
author2_role |
author author |
dc.subject.none.fl_str_mv |
Física Ciencias Exactas magnetic field quantum chromodynamics Ritus eigenfunction method |
topic |
Física Ciencias Exactas magnetic field quantum chromodynamics Ritus eigenfunction method |
dc.description.none.fl_txt_mv |
We study the description of nucleons and diquarks in the presence of a uniform strong magnetic field within the framework of the two-flavor Nambu--Jona-Lasinio model. Diquarks are constructed through the resummation of quark loop chains using the random phase approximation, while nucleons are treated as bound quark-diquark states described by a relativistic Fadeev equation, using the static approximation for quark exchange interactions. For charged particles, analytical calculations are performed using the Ritus eigenfunction method, which properly takes into account the breakdown of translation invariance that arises from the presence of Schwinger phases. Within this scheme, for definite model parametrizations we obtain numerical predictions for diquark and nucleon masses, which are compared with chiral perturbation theory and lattice QCD results. In addition, numerical estimations for nucleon magnetic moments are obtained. Instituto de Física La Plata |
description |
We study the description of nucleons and diquarks in the presence of a uniform strong magnetic field within the framework of the two-flavor Nambu--Jona-Lasinio model. Diquarks are constructed through the resummation of quark loop chains using the random phase approximation, while nucleons are treated as bound quark-diquark states described by a relativistic Fadeev equation, using the static approximation for quark exchange interactions. For charged particles, analytical calculations are performed using the Ritus eigenfunction method, which properly takes into account the breakdown of translation invariance that arises from the presence of Schwinger phases. Within this scheme, for definite model parametrizations we obtain numerical predictions for diquark and nucleon masses, which are compared with chiral perturbation theory and lattice QCD results. In addition, numerical estimations for nucleon magnetic moments are obtained. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-11-18 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Articulo 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://sedici.unlp.edu.ar/handle/10915/133308 |
url |
http://sedici.unlp.edu.ar/handle/10915/133308 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/issn/2470-0010 info:eu-repo/semantics/altIdentifier/issn/2470-0029 info:eu-repo/semantics/altIdentifier/doi/10.1103/physrevd.102.094020 info:eu-repo/semantics/altIdentifier/arxiv/2009.14105 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International (CC BY 4.0) |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International (CC BY 4.0) |
dc.format.none.fl_str_mv |
application/pdf |
dc.source.none.fl_str_mv |
reponame:SEDICI (UNLP) instname:Universidad Nacional de La Plata instacron:UNLP |
reponame_str |
SEDICI (UNLP) |
collection |
SEDICI (UNLP) |
instname_str |
Universidad Nacional de La Plata |
instacron_str |
UNLP |
institution |
UNLP |
repository.name.fl_str_mv |
SEDICI (UNLP) - Universidad Nacional de La Plata |
repository.mail.fl_str_mv |
alira@sedici.unlp.edu.ar |
_version_ |
1844616197201461248 |
score |
13.070432 |