Double beta decay of Σ-hyperons
- Autores
- Barbero, César Alberto; López Castro, G.; Mariano, Alejandro Edgardo
- Año de publicación
- 2003
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- We compute the strangeness-conserving double beta decay of Σ- hyperons, which is the only hadronic system that can undergo such decays. We consider both, the lepton number conserving Σ- → Σ+e-e-νν (ββΣ2ν) and the lepton number violating Σ- → Σ+e-e- (ββΣ0ν) modes. The branching ratios of these ββ decays are suppressed at the level of 10-30 considering a light neutrino scenario in the case of the ββΣ0ν channel. The dynamical origin of such low rates and their possible enhancements are briefly discussed. Given its simplicity those decays can be used also for the purposes of illustrating the main features of double beta decays.
Facultad de Ciencias Exactas - Materia
-
Física
Double-beta decay
Σ hyperon - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by-nc-sa/4.0/
- Repositorio
.jpg)
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/83463
Ver los metadatos del registro completo
| id |
SEDICI_57bb96105f7e0fa86139cbecc90a220e |
|---|---|
| oai_identifier_str |
oai:sedici.unlp.edu.ar:10915/83463 |
| network_acronym_str |
SEDICI |
| repository_id_str |
1329 |
| network_name_str |
SEDICI (UNLP) |
| spelling |
Double beta decay of Σ-hyperonsBarbero, César AlbertoLópez Castro, G.Mariano, Alejandro EdgardoFísicaDouble-beta decayΣ hyperonWe compute the strangeness-conserving double beta decay of Σ- hyperons, which is the only hadronic system that can undergo such decays. We consider both, the lepton number conserving Σ- → Σ+e-e-νν (ββΣ2ν) and the lepton number violating Σ- → Σ+e-e- (ββΣ0ν) modes. The branching ratios of these ββ decays are suppressed at the level of 10-30 considering a light neutrino scenario in the case of the ββΣ0ν channel. The dynamical origin of such low rates and their possible enhancements are briefly discussed. Given its simplicity those decays can be used also for the purposes of illustrating the main features of double beta decays.Facultad de Ciencias Exactas2003info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf98-107http://sedici.unlp.edu.ar/handle/10915/83463enginfo:eu-repo/semantics/altIdentifier/issn/0370-2693info:eu-repo/semantics/altIdentifier/doi/10.1016/S0370-2693(03)00773-1info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-10-15T11:07:43Zoai:sedici.unlp.edu.ar:10915/83463Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-15 11:07:43.445SEDICI (UNLP) - Universidad Nacional de La Platafalse |
| dc.title.none.fl_str_mv |
Double beta decay of Σ-hyperons |
| title |
Double beta decay of Σ-hyperons |
| spellingShingle |
Double beta decay of Σ-hyperons Barbero, César Alberto Física Double-beta decay Σ hyperon |
| title_short |
Double beta decay of Σ-hyperons |
| title_full |
Double beta decay of Σ-hyperons |
| title_fullStr |
Double beta decay of Σ-hyperons |
| title_full_unstemmed |
Double beta decay of Σ-hyperons |
| title_sort |
Double beta decay of Σ-hyperons |
| dc.creator.none.fl_str_mv |
Barbero, César Alberto López Castro, G. Mariano, Alejandro Edgardo |
| author |
Barbero, César Alberto |
| author_facet |
Barbero, César Alberto López Castro, G. Mariano, Alejandro Edgardo |
| author_role |
author |
| author2 |
López Castro, G. Mariano, Alejandro Edgardo |
| author2_role |
author author |
| dc.subject.none.fl_str_mv |
Física Double-beta decay Σ hyperon |
| topic |
Física Double-beta decay Σ hyperon |
| dc.description.none.fl_txt_mv |
We compute the strangeness-conserving double beta decay of Σ- hyperons, which is the only hadronic system that can undergo such decays. We consider both, the lepton number conserving Σ- → Σ+e-e-νν (ββΣ2ν) and the lepton number violating Σ- → Σ+e-e- (ββΣ0ν) modes. The branching ratios of these ββ decays are suppressed at the level of 10-30 considering a light neutrino scenario in the case of the ββΣ0ν channel. The dynamical origin of such low rates and their possible enhancements are briefly discussed. Given its simplicity those decays can be used also for the purposes of illustrating the main features of double beta decays. Facultad de Ciencias Exactas |
| description |
We compute the strangeness-conserving double beta decay of Σ- hyperons, which is the only hadronic system that can undergo such decays. We consider both, the lepton number conserving Σ- → Σ+e-e-νν (ββΣ2ν) and the lepton number violating Σ- → Σ+e-e- (ββΣ0ν) modes. The branching ratios of these ββ decays are suppressed at the level of 10-30 considering a light neutrino scenario in the case of the ββΣ0ν channel. The dynamical origin of such low rates and their possible enhancements are briefly discussed. Given its simplicity those decays can be used also for the purposes of illustrating the main features of double beta decays. |
| publishDate |
2003 |
| dc.date.none.fl_str_mv |
2003 |
| 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/10915/83463 |
| url |
http://sedici.unlp.edu.ar/handle/10915/83463 |
| dc.language.none.fl_str_mv |
eng |
| language |
eng |
| dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/issn/0370-2693 info:eu-repo/semantics/altIdentifier/doi/10.1016/S0370-2693(03)00773-1 |
| dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) |
| eu_rights_str_mv |
openAccess |
| rights_invalid_str_mv |
http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) |
| dc.format.none.fl_str_mv |
application/pdf 98-107 |
| 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_ |
1846064133516034048 |
| score |
13.22299 |