Weak Magnetism in Two Neutrino Double Beta Decay

Autores
Barbero, César Alberto; Krmpotić, Francisco; Mariano, Alejandro Edgardo; Tadić, Dubravko
Año de publicación
1999
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We have extended the formalism for the two-neutrino double beta decay by including the weak-agnetism term, as well as other second-forbidden corrections. The weak magnetism diminishes the calculated half-lives in ∼ 10%, independently of the nuclear structure. Numerical computations were performed within the pn-QRPA, for 76Ge, 82Se, 100Mo, 128T e and 130T e nuclei. No one of the second-forbidden corrections modifies significantly the spectrum shapes. The total reduction in the calculated half lives varies from 6% up to 32%, and strongly depend on the nuclear interaction in the particle-particle S = 1, T = 0 channel. We conclude that the higher order effects in the weak Hamiltonian would hardly be observed in the two-neutrino double beta experiments.
Facultad de Ciencias Exactas
Materia
Ciencias Exactas
Física
Magnetism
Neutrino
Double beta decay
Nuclear structure
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/123012
Acceder
id SEDICI_29e88203962d962fcfae0383b2069333
oai_identifier_str oai:sedici.unlp.edu.ar:10915/123012
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Weak Magnetism in Two Neutrino Double Beta DecayBarbero, César AlbertoKrmpotić, FranciscoMariano, Alejandro EdgardoTadić, DubravkoCiencias ExactasFísicaMagnetismNeutrinoDouble beta decayNuclear structureWe have extended the formalism for the two-neutrino double beta decay by including the weak-agnetism term, as well as other second-forbidden corrections. The weak magnetism diminishes the calculated half-lives in ∼ 10%, independently of the nuclear structure. Numerical computations were performed within the pn-QRPA, for <sup>76</sup>Ge, <sup>82</sup>Se, <sup>100</sup>Mo, <sup>128</sup>T e and <sup>130</sup>T e nuclei. No one of the second-forbidden corrections modifies significantly the spectrum shapes. The total reduction in the calculated half lives varies from 6% up to 32%, and strongly depend on the nuclear interaction in the particle-particle S = 1, T = 0 channel. We conclude that the higher order effects in the weak Hamiltonian would hardly be observed in the two-neutrino double beta experiments.Facultad de Ciencias Exactas1999-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf249-253http://sedici.unlp.edu.ar/handle/10915/123012enginfo:eu-repo/semantics/altIdentifier/issn/0370-2693info:eu-repo/semantics/altIdentifier/arxiv/nucl-th/9810072info:eu-repo/semantics/altIdentifier/doi/10.1016/s0370-2693(98)01391-4info: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:UNLP2025-10-22T17:10:09Zoai:sedici.unlp.edu.ar:10915/123012Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-22 17:10:10.191SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Weak Magnetism in Two Neutrino Double Beta Decay
title Weak Magnetism in Two Neutrino Double Beta Decay
spellingShingle Weak Magnetism in Two Neutrino Double Beta Decay
Barbero, César Alberto
Ciencias Exactas
Física
Magnetism
Neutrino
Double beta decay
Nuclear structure
title_short Weak Magnetism in Two Neutrino Double Beta Decay
title_full Weak Magnetism in Two Neutrino Double Beta Decay
title_fullStr Weak Magnetism in Two Neutrino Double Beta Decay
title_full_unstemmed Weak Magnetism in Two Neutrino Double Beta Decay
title_sort Weak Magnetism in Two Neutrino Double Beta Decay
dc.creator.none.fl_str_mv Barbero, César Alberto
Krmpotić, Francisco
Mariano, Alejandro Edgardo
Tadić, Dubravko
author Barbero, César Alberto
author_facet Barbero, César Alberto
Krmpotić, Francisco
Mariano, Alejandro Edgardo
Tadić, Dubravko
author_role author
author2 Krmpotić, Francisco
Mariano, Alejandro Edgardo
Tadić, Dubravko
author2_role author
author
author
dc.subject.none.fl_str_mv Ciencias Exactas
Física
Magnetism
Neutrino
Double beta decay
Nuclear structure
topic Ciencias Exactas
Física
Magnetism
Neutrino
Double beta decay
Nuclear structure
dc.description.none.fl_txt_mv We have extended the formalism for the two-neutrino double beta decay by including the weak-agnetism term, as well as other second-forbidden corrections. The weak magnetism diminishes the calculated half-lives in ∼ 10%, independently of the nuclear structure. Numerical computations were performed within the pn-QRPA, for <sup>76</sup>Ge, <sup>82</sup>Se, <sup>100</sup>Mo, <sup>128</sup>T e and <sup>130</sup>T e nuclei. No one of the second-forbidden corrections modifies significantly the spectrum shapes. The total reduction in the calculated half lives varies from 6% up to 32%, and strongly depend on the nuclear interaction in the particle-particle S = 1, T = 0 channel. We conclude that the higher order effects in the weak Hamiltonian would hardly be observed in the two-neutrino double beta experiments.
Facultad de Ciencias Exactas
description We have extended the formalism for the two-neutrino double beta decay by including the weak-agnetism term, as well as other second-forbidden corrections. The weak magnetism diminishes the calculated half-lives in ∼ 10%, independently of the nuclear structure. Numerical computations were performed within the pn-QRPA, for <sup>76</sup>Ge, <sup>82</sup>Se, <sup>100</sup>Mo, <sup>128</sup>T e and <sup>130</sup>T e nuclei. No one of the second-forbidden corrections modifies significantly the spectrum shapes. The total reduction in the calculated half lives varies from 6% up to 32%, and strongly depend on the nuclear interaction in the particle-particle S = 1, T = 0 channel. We conclude that the higher order effects in the weak Hamiltonian would hardly be observed in the two-neutrino double beta experiments.
publishDate 1999
dc.date.none.fl_str_mv 1999-01
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/10915/123012
url http://sedici.unlp.edu.ar/handle/10915/123012
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/arxiv/nucl-th/9810072
info:eu-repo/semantics/altIdentifier/doi/10.1016/s0370-2693(98)01391-4
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
249-253
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
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score 12.982451

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