Low-energy threshold demonstration for dark matter searches in TREX-DM with an 37Ar source produced at CNA HiSPANoS

We report on the successful implementation of an 37Ar calibration source in the TREX-DM detector, a high-pressure time projection chamber designed for low-mass dark matter searches. The 37Ar source was produced through fast neutron activation of CaO powder at the HiSPANoS facility of Centro Nacional...

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Detalles Bibliográficos
Autores: Castel, Juan Francisco, Cebrián, Susana, Dafni, Theopisti, Díez-Ibáñez, David, Ezquerro, Álvaro, Fernández, Begoña, Galán, Javier, García, Juan Antonio, Guerrero, Carlos, García Irastorza, Igor, Luzón, Gloria, Margalejo, Cristina, Mirallas, Héctor, Obis, Luis, Ortiz de Solórzano, Alfonso, Pérez Lázaro, Óscar, Porrón, Jorge, Jiménez Puyuelo, María, Quintana, Ana
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2026
País:España
Institución:Universidad de Zaragoza
Repositorio:Zaguán. Repositorio Digital de la Universidad de Zaragoza
OAI Identifier:oai:dnet:zaguan______::03b7bf851702847a9a3889d64de9668b
Acceso en línea:http://zaguan.unizar.es/record/171651
Access Level:acceso embargado
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spelling Low-energy threshold demonstration for dark matter searches in TREX-DM with an 37Ar source produced at CNA HiSPANoSCastel, Juan FranciscoCebrián, SusanaDafni, TheopistiDíez-Ibáñez, DavidEzquerro, ÁlvaroFernández, BegoñaGalán, JavierGarcía, Juan AntonioGuerrero, CarlosGarcía Irastorza, IgorLuzón, GloriaMargalejo, CristinaMirallas, HéctorObis, LuisOrtiz de Solórzano, AlfonsoPérez Lázaro, ÓscarPorrón, JorgeJiménez Puyuelo, MaríaQuintana, AnaWe report on the successful implementation of an 37Ar calibration source in the TREX-DM detector, a high-pressure time projection chamber designed for low-mass dark matter searches. The 37Ar source was produced through fast neutron activation of CaO powder at the HiSPANoS facility of Centro Nacional de Aceleradores (CNA) in Spain, yielding O(1) kBq of activity. Using a novel combined GEM-Micromegas readout system, we successfully detected both characteristic emissions from 37Ar decay (2.82 keV and 270 eV) and achieved unprecedented energy threshold performance in TREX-DM, approaching the single-electron ionization energy of argon.2026info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionapplication/pdfhttp://zaguan.unizar.es/record/171651reponame:Zaguán. Repositorio Digital de la Universidad de Zaragozainstname:Universidad de ZaragozaInglésinfo:eu-repo/grantAgreement/ES/AEI/PID2021-123879OB-C21info:eu-repo/grantAgreement/ES/AEI/PID2022-137268NB-C51info:eu-repo/grantAgreement/EUR/ERC-2017-AdG-788781/info:eu-repo/grantAgreement/EC/H2020/788781This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No H2020 788781-IAXOplusinfo:eu-repo/semantics/embargoedAccessoai:dnet:zaguan______::03b7bf851702847a9a3889d64de9668b2026-05-29T13:59:51Z
dc.title.none.fl_str_mv Low-energy threshold demonstration for dark matter searches in TREX-DM with an 37Ar source produced at CNA HiSPANoS
title Low-energy threshold demonstration for dark matter searches in TREX-DM with an 37Ar source produced at CNA HiSPANoS
spellingShingle Low-energy threshold demonstration for dark matter searches in TREX-DM with an 37Ar source produced at CNA HiSPANoS
Castel, Juan Francisco
title_short Low-energy threshold demonstration for dark matter searches in TREX-DM with an 37Ar source produced at CNA HiSPANoS
title_full Low-energy threshold demonstration for dark matter searches in TREX-DM with an 37Ar source produced at CNA HiSPANoS
title_fullStr Low-energy threshold demonstration for dark matter searches in TREX-DM with an 37Ar source produced at CNA HiSPANoS
title_full_unstemmed Low-energy threshold demonstration for dark matter searches in TREX-DM with an 37Ar source produced at CNA HiSPANoS
title_sort Low-energy threshold demonstration for dark matter searches in TREX-DM with an 37Ar source produced at CNA HiSPANoS
dc.creator.none.fl_str_mv Castel, Juan Francisco
Cebrián, Susana
Dafni, Theopisti
Díez-Ibáñez, David
Ezquerro, Álvaro
Fernández, Begoña
Galán, Javier
García, Juan Antonio
Guerrero, Carlos
García Irastorza, Igor
Luzón, Gloria
Margalejo, Cristina
Mirallas, Héctor
Obis, Luis
Ortiz de Solórzano, Alfonso
Pérez Lázaro, Óscar
Porrón, Jorge
Jiménez Puyuelo, María
Quintana, Ana
author Castel, Juan Francisco
author_facet Castel, Juan Francisco
Cebrián, Susana
Dafni, Theopisti
Díez-Ibáñez, David
Ezquerro, Álvaro
Fernández, Begoña
Galán, Javier
García, Juan Antonio
Guerrero, Carlos
García Irastorza, Igor
Luzón, Gloria
Margalejo, Cristina
Mirallas, Héctor
Obis, Luis
Ortiz de Solórzano, Alfonso
Pérez Lázaro, Óscar
Porrón, Jorge
Jiménez Puyuelo, María
Quintana, Ana
author_role author
author2 Cebrián, Susana
Dafni, Theopisti
Díez-Ibáñez, David
Ezquerro, Álvaro
Fernández, Begoña
Galán, Javier
García, Juan Antonio
Guerrero, Carlos
García Irastorza, Igor
Luzón, Gloria
Margalejo, Cristina
Mirallas, Héctor
Obis, Luis
Ortiz de Solórzano, Alfonso
Pérez Lázaro, Óscar
Porrón, Jorge
Jiménez Puyuelo, María
Quintana, Ana
author2_role author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
description We report on the successful implementation of an 37Ar calibration source in the TREX-DM detector, a high-pressure time projection chamber designed for low-mass dark matter searches. The 37Ar source was produced through fast neutron activation of CaO powder at the HiSPANoS facility of Centro Nacional de Aceleradores (CNA) in Spain, yielding O(1) kBq of activity. Using a novel combined GEM-Micromegas readout system, we successfully detected both characteristic emissions from 37Ar decay (2.82 keV and 270 eV) and achieved unprecedented energy threshold performance in TREX-DM, approaching the single-electron ionization energy of argon.
publishDate 2026
dc.date.none.fl_str_mv 2026
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://zaguan.unizar.es/record/171651
url http://zaguan.unizar.es/record/171651
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv info:eu-repo/grantAgreement/ES/AEI/PID2021-123879OB-C21
info:eu-repo/grantAgreement/ES/AEI/PID2022-137268NB-C51
info:eu-repo/grantAgreement/EUR/ERC-2017-AdG-788781/
info:eu-repo/grantAgreement/EC/H2020/788781
This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No H2020 788781-IAXOplus
dc.rights.none.fl_str_mv info:eu-repo/semantics/embargoedAccess
eu_rights_str_mv embargoedAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv
publisher.none.fl_str_mv
dc.source.none.fl_str_mv reponame:Zaguán. Repositorio Digital de la Universidad de Zaragoza
instname:Universidad de Zaragoza
instname_str Universidad de Zaragoza
reponame_str Zaguán. Repositorio Digital de la Universidad de Zaragoza
collection Zaguán. Repositorio Digital de la Universidad de Zaragoza
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,81155

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