Impact of the leading-order short-range nuclear matrix element on the neutrinoless double-beta decay of medium-mass and heavy nuclei

We evaluate the leading-order short-range nuclear matrix element for the neutrinoless double-beta () decay of the nuclei most relevant for experiments, including 76Ge, 100Mo, 130Te and 136Xe. In our calculations, performed with the nuclear shell model and proton-neutron quasiparticle random-phase ap...

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Autores: Jokiniemi, Lotta, Soriano, Pablo, Menéndez Sánchez, Javier
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2021
País:España
Institución:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/215187
Acceso en línea:https://hdl.handle.net/2445/215187
Access Level:acceso abierto
Palabra clave:Física de partícules
Física nuclear
Neutrins
Particle physics
Nuclear physics
Neutrinos
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spelling Impact of the leading-order short-range nuclear matrix element on the neutrinoless double-beta decay of medium-mass and heavy nucleiJokiniemi, LottaSoriano, PabloMenéndez Sánchez, JavierFísica de partículesFísica nuclearNeutrinsParticle physicsNuclear physicsNeutrinosWe evaluate the leading-order short-range nuclear matrix element for the neutrinoless double-beta () decay of the nuclei most relevant for experiments, including 76Ge, 100Mo, 130Te and 136Xe. In our calculations, performed with the nuclear shell model and proton-neutron quasiparticle random-phase approximation (pnQRPA) methods, we estimate the coupling of this term by the contact charge-independence-breaking coupling of various nuclear Hamiltonians. Our results suggest a significant impact of the short-range matrix element, which is about and of the standard -decay long-range matrix element for the shell model and pnQRPA, respectively. Combining the full matrix elements with the results from current -decay experiments we find that, if both matrix elements carry the same sign, these searches move notably toward probing the inverted mass ordering of neutrino masses.Elsevier B.V.2021info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2445/215187Articles publicats en revistes (Física Quàntica i Astrofísica)reponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglésReproducció del document publicat a: https://doi.org/10.1016/j.physletb.2021.136720Physics Letters B, 2021, vol. 823, p. 136720https://doi.org/10.1016/j.physletb.2021.136720cc-by (c) Jokiniemi, L. et al., 2021http://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/2151872026-05-27T06:46:51Z
dc.title.none.fl_str_mv Impact of the leading-order short-range nuclear matrix element on the neutrinoless double-beta decay of medium-mass and heavy nuclei
title Impact of the leading-order short-range nuclear matrix element on the neutrinoless double-beta decay of medium-mass and heavy nuclei
spellingShingle Impact of the leading-order short-range nuclear matrix element on the neutrinoless double-beta decay of medium-mass and heavy nuclei
Jokiniemi, Lotta
Física de partícules
Física nuclear
Neutrins
Particle physics
Nuclear physics
Neutrinos
title_short Impact of the leading-order short-range nuclear matrix element on the neutrinoless double-beta decay of medium-mass and heavy nuclei
title_full Impact of the leading-order short-range nuclear matrix element on the neutrinoless double-beta decay of medium-mass and heavy nuclei
title_fullStr Impact of the leading-order short-range nuclear matrix element on the neutrinoless double-beta decay of medium-mass and heavy nuclei
title_full_unstemmed Impact of the leading-order short-range nuclear matrix element on the neutrinoless double-beta decay of medium-mass and heavy nuclei
title_sort Impact of the leading-order short-range nuclear matrix element on the neutrinoless double-beta decay of medium-mass and heavy nuclei
dc.creator.none.fl_str_mv Jokiniemi, Lotta
Soriano, Pablo
Menéndez Sánchez, Javier
author Jokiniemi, Lotta
author_facet Jokiniemi, Lotta
Soriano, Pablo
Menéndez Sánchez, Javier
author_role author
author2 Soriano, Pablo
Menéndez Sánchez, Javier
author2_role author
author
dc.subject.none.fl_str_mv Física de partícules
Física nuclear
Neutrins
Particle physics
Nuclear physics
Neutrinos
topic Física de partícules
Física nuclear
Neutrins
Particle physics
Nuclear physics
Neutrinos
description We evaluate the leading-order short-range nuclear matrix element for the neutrinoless double-beta () decay of the nuclei most relevant for experiments, including 76Ge, 100Mo, 130Te and 136Xe. In our calculations, performed with the nuclear shell model and proton-neutron quasiparticle random-phase approximation (pnQRPA) methods, we estimate the coupling of this term by the contact charge-independence-breaking coupling of various nuclear Hamiltonians. Our results suggest a significant impact of the short-range matrix element, which is about and of the standard -decay long-range matrix element for the shell model and pnQRPA, respectively. Combining the full matrix elements with the results from current -decay experiments we find that, if both matrix elements carry the same sign, these searches move notably toward probing the inverted mass ordering of neutrino masses.
publishDate 2021
dc.date.none.fl_str_mv 2021
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/2445/215187
url https://hdl.handle.net/2445/215187
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/10.1016/j.physletb.2021.136720
Physics Letters B, 2021, vol. 823, p. 136720
https://doi.org/10.1016/j.physletb.2021.136720
dc.rights.none.fl_str_mv cc-by (c) Jokiniemi, L. et al., 2021
http://creativecommons.org/licenses/by/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv cc-by (c) Jokiniemi, L. et al., 2021
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier B.V.
publisher.none.fl_str_mv Elsevier B.V.
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 15.812429

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