Neutrinoless double-β decay in the neutrino-extended standard model

We investigate neutrinoless double-beta decay (0⁢ ⁢ ⁢ ) in the minimal extension of the standard model of particle physics, the ⁢SM, where gauge-singlet right-handed neutrinos give rise to Dirac and Majorana neutrino mass terms. We focus on the associated sterile neutrinos and argue that the usual e...

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Autores: Dekens, W., de Vries, Jan, Mereghetti, E., Menéndez Sánchez, Javier, Soriano, Pablo, Zhou, G.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2023
País:España
Institución:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/215833
Acceso en línea:https://hdl.handle.net/2445/215833
Access Level:acceso abierto
Palabra clave:Neutrins
Estructura nuclear
Neutrinos
Nuclear structure
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spelling Neutrinoless double-β decay in the neutrino-extended standard modelDekens, W.de Vries, JanMereghetti, E.Menéndez Sánchez, JavierSoriano, PabloZhou, G.NeutrinsEstructura nuclearNeutrinosNuclear structureWe investigate neutrinoless double-beta decay (0⁢ ⁢ ⁢ ) in the minimal extension of the standard model of particle physics, the ⁢SM, where gauge-singlet right-handed neutrinos give rise to Dirac and Majorana neutrino mass terms. We focus on the associated sterile neutrinos and argue that the usual evaluation of their contributions to 0⁢ ⁢ ⁢ , based on mass-dependent nuclear matrix elements, is missing important contributions from neutrinos with ultrasoft and hard momenta. We identify the hadronic and nuclear matrix elements that enter the new contributions, and calculate all relevant nuclear matrix elements for 136Xe using the nuclear shell model. Finally, we illustrate the impact on 0⁢ ⁢ ⁢ rates in specific neutrino mass models and show that the new contributions significantly alter the 0⁢ ⁢ ⁢ rate in most parts of the ⁢SM parameter space.American Physical Society2023info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2445/215833Articles publicats en revistes (Física Quàntica i Astrofísica)reponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglésReproducció del document publicat a: https://doi.org/10.1103/PhysRevC.108.045501Physical Review C, 2023, vol. 108, p. 045501https://doi.org/10.1103/PhysRevC.108.045501(c) American Physical Society, 2023info:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/2158332026-05-27T06:46:51Z
dc.title.none.fl_str_mv Neutrinoless double-β decay in the neutrino-extended standard model
title Neutrinoless double-β decay in the neutrino-extended standard model
spellingShingle Neutrinoless double-β decay in the neutrino-extended standard model
Dekens, W.
Neutrins
Estructura nuclear
Neutrinos
Nuclear structure
title_short Neutrinoless double-β decay in the neutrino-extended standard model
title_full Neutrinoless double-β decay in the neutrino-extended standard model
title_fullStr Neutrinoless double-β decay in the neutrino-extended standard model
title_full_unstemmed Neutrinoless double-β decay in the neutrino-extended standard model
title_sort Neutrinoless double-β decay in the neutrino-extended standard model
dc.creator.none.fl_str_mv Dekens, W.
de Vries, Jan
Mereghetti, E.
Menéndez Sánchez, Javier
Soriano, Pablo
Zhou, G.
author Dekens, W.
author_facet Dekens, W.
de Vries, Jan
Mereghetti, E.
Menéndez Sánchez, Javier
Soriano, Pablo
Zhou, G.
author_role author
author2 de Vries, Jan
Mereghetti, E.
Menéndez Sánchez, Javier
Soriano, Pablo
Zhou, G.
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Neutrins
Estructura nuclear
Neutrinos
Nuclear structure
topic Neutrins
Estructura nuclear
Neutrinos
Nuclear structure
description We investigate neutrinoless double-beta decay (0⁢ ⁢ ⁢ ) in the minimal extension of the standard model of particle physics, the ⁢SM, where gauge-singlet right-handed neutrinos give rise to Dirac and Majorana neutrino mass terms. We focus on the associated sterile neutrinos and argue that the usual evaluation of their contributions to 0⁢ ⁢ ⁢ , based on mass-dependent nuclear matrix elements, is missing important contributions from neutrinos with ultrasoft and hard momenta. We identify the hadronic and nuclear matrix elements that enter the new contributions, and calculate all relevant nuclear matrix elements for 136Xe using the nuclear shell model. Finally, we illustrate the impact on 0⁢ ⁢ ⁢ rates in specific neutrino mass models and show that the new contributions significantly alter the 0⁢ ⁢ ⁢ rate in most parts of the ⁢SM parameter space.
publishDate 2023
dc.date.none.fl_str_mv 2023
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/215833
url https://hdl.handle.net/2445/215833
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció del document publicat a: https://doi.org/10.1103/PhysRevC.108.045501
Physical Review C, 2023, vol. 108, p. 045501
https://doi.org/10.1103/PhysRevC.108.045501
dc.rights.none.fl_str_mv (c) American Physical Society, 2023
info:eu-repo/semantics/openAccess
rights_invalid_str_mv (c) American Physical Society, 2023
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv American Physical Society
publisher.none.fl_str_mv American Physical Society
dc.source.none.fl_str_mv Articles publicats en revistes (Física Quàntica i Astrofísica)
reponame:Dipòsit Digital de la UB
instname:Universidad de Barcelona
instname_str Universidad de Barcelona
reponame_str Dipòsit Digital de la UB
collection Dipòsit Digital de la UB
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.81155

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