On improvements of Double Beta Decay using FQTDA Model

Autores
Oliveira, L. de; Samana, Arturo Rodolfo; Krmpotić, Francisco; Mariano, Alejandro Edgardo; Barbero, César Alberto
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The Quasiparticle Tamm-Dancoff Approximation (QTDA) is applied to describe the nuclear double beta decay with two neutrinos. Several serious inconveniences found in the Quasiparticle Random Phase Approximation (QRPA) are not present in the QTDA, as such as the ambiguity in treating the intermediary states, and further approximations necessary for evaluation of the nuclear matrix elements (NMEs) or, the extreme sensitivity of NME with the ratio between the pn and pp + nn pairings. Some years ago, the decay 48Ca → 48Ti was discussed within the particle-hole limit of QTDA. We found some mismatch in the numerical calculations when the full QTDA was being implemented, and a new performance in the particle-hole limit of QTDA is required to guarantee the fidelity of the approximation.
Facultad de Ciencias Exactas
Instituto de Física La Plata
Materia
Ciencias Exactas
Física
Quasiparticle Tamm-Dancoff Approximation
double beta decay
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by/3.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/87042
Acceder
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oai_identifier_str oai:sedici.unlp.edu.ar:10915/87042
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repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling On improvements of Double Beta Decay using FQTDA ModelOliveira, L. deSamana, Arturo RodolfoKrmpotić, FranciscoMariano, Alejandro EdgardoBarbero, César AlbertoCiencias ExactasFísicaQuasiparticle Tamm-Dancoff Approximationdouble beta decayThe Quasiparticle Tamm-Dancoff Approximation (QTDA) is applied to describe the nuclear double beta decay with two neutrinos. Several serious inconveniences found in the Quasiparticle Random Phase Approximation (QRPA) are not present in the QTDA, as such as the ambiguity in treating the intermediary states, and further approximations necessary for evaluation of the nuclear matrix elements (NMEs) or, the extreme sensitivity of NME with the ratio between the pn and pp + nn pairings. Some years ago, the decay <sup>48</sup>Ca → <sup>48</sup>Ti was discussed within the particle-hole limit of QTDA. We found some mismatch in the numerical calculations when the full QTDA was being implemented, and a new performance in the particle-hole limit of QTDA is required to guarantee the fidelity of the approximation.Facultad de Ciencias ExactasInstituto de Física La Plata2015info: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/10915/87042enginfo:eu-repo/semantics/altIdentifier/issn/1742-6588info:eu-repo/semantics/altIdentifier/doi/10.1088/1742-6596/630/1/012048info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/3.0/Creative Commons Attribution 3.0 Unported (CC BY 3.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-10-22T16:57:43Zoai:sedici.unlp.edu.ar:10915/87042Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-22 16:57:43.269SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv On improvements of Double Beta Decay using FQTDA Model
title On improvements of Double Beta Decay using FQTDA Model
spellingShingle On improvements of Double Beta Decay using FQTDA Model
Oliveira, L. de
Ciencias Exactas
Física
Quasiparticle Tamm-Dancoff Approximation
double beta decay
title_short On improvements of Double Beta Decay using FQTDA Model
title_full On improvements of Double Beta Decay using FQTDA Model
title_fullStr On improvements of Double Beta Decay using FQTDA Model
title_full_unstemmed On improvements of Double Beta Decay using FQTDA Model
title_sort On improvements of Double Beta Decay using FQTDA Model
dc.creator.none.fl_str_mv Oliveira, L. de
Samana, Arturo Rodolfo
Krmpotić, Francisco
Mariano, Alejandro Edgardo
Barbero, César Alberto
author Oliveira, L. de
author_facet Oliveira, L. de
Samana, Arturo Rodolfo
Krmpotić, Francisco
Mariano, Alejandro Edgardo
Barbero, César Alberto
author_role author
author2 Samana, Arturo Rodolfo
Krmpotić, Francisco
Mariano, Alejandro Edgardo
Barbero, César Alberto
author2_role author
author
author
author
dc.subject.none.fl_str_mv Ciencias Exactas
Física
Quasiparticle Tamm-Dancoff Approximation
double beta decay
topic Ciencias Exactas
Física
Quasiparticle Tamm-Dancoff Approximation
double beta decay
dc.description.none.fl_txt_mv The Quasiparticle Tamm-Dancoff Approximation (QTDA) is applied to describe the nuclear double beta decay with two neutrinos. Several serious inconveniences found in the Quasiparticle Random Phase Approximation (QRPA) are not present in the QTDA, as such as the ambiguity in treating the intermediary states, and further approximations necessary for evaluation of the nuclear matrix elements (NMEs) or, the extreme sensitivity of NME with the ratio between the pn and pp + nn pairings. Some years ago, the decay <sup>48</sup>Ca → <sup>48</sup>Ti was discussed within the particle-hole limit of QTDA. We found some mismatch in the numerical calculations when the full QTDA was being implemented, and a new performance in the particle-hole limit of QTDA is required to guarantee the fidelity of the approximation.
Facultad de Ciencias Exactas
Instituto de Física La Plata
description The Quasiparticle Tamm-Dancoff Approximation (QTDA) is applied to describe the nuclear double beta decay with two neutrinos. Several serious inconveniences found in the Quasiparticle Random Phase Approximation (QRPA) are not present in the QTDA, as such as the ambiguity in treating the intermediary states, and further approximations necessary for evaluation of the nuclear matrix elements (NMEs) or, the extreme sensitivity of NME with the ratio between the pn and pp + nn pairings. Some years ago, the decay <sup>48</sup>Ca → <sup>48</sup>Ti was discussed within the particle-hole limit of QTDA. We found some mismatch in the numerical calculations when the full QTDA was being implemented, and a new performance in the particle-hole limit of QTDA is required to guarantee the fidelity of the approximation.
publishDate 2015
dc.date.none.fl_str_mv 2015
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/10915/87042
url http://sedici.unlp.edu.ar/handle/10915/87042
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/1742-6588
info:eu-repo/semantics/altIdentifier/doi/10.1088/1742-6596/630/1/012048
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/3.0/
Creative Commons Attribution 3.0 Unported (CC BY 3.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/3.0/
Creative Commons Attribution 3.0 Unported (CC BY 3.0)
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
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score 12.982451

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