Micromegas for dark matter searches: CAST/IAXO & TREX-DM experiments

The most compelling candidates for Dark Matter to day are WIMPs and axions. The applicability of gasesous Time Projection Chambers (TPCs) with Micromesh Gas Structures (Micromegas) to the search of these particles is explored within this work. Both particles would produce an extremely low rate at ve...

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Authors: Garza, J.G., Aune, S., Aznar, F., Castel, J.F., Cebrian, S., Dafni, T., Ferrer-Ribas, E., Galan, J., Garcia, J.A., Giomataris, I., Iguaz, F.J., Irastorza, I.G., Luzon, G., Mirallas, H., Papaevangelou, T., Peiro, A., Tomas, A., Vafeiadis, T.
Format: article
Status:Published version
Publication Date:2018
Country:España
Institution:Universidad de Zaragoza
Repository:Zaguán. Repositorio Digital de la Universidad de Zaragoza
OAI Identifier:oai:zaguan.unizar.es:70255
Online Access:http://zaguan.unizar.es/record/70255
Access Level:Open access
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spelling Micromegas for dark matter searches: CAST/IAXO & TREX-DM experimentsGarza, J.G.Aune, S.Aznar, F.Castel, J.F.Cebrian, S.Dafni, T.Ferrer-Ribas, E.Galan, J.Garcia, J.A.Giomataris, I.Iguaz, F.J.Irastorza, I.G.Luzon, G.Mirallas, H.Papaevangelou, T.Peiro, A.Tomas, A.Vafeiadis, T.The most compelling candidates for Dark Matter to day are WIMPs and axions. The applicability of gasesous Time Projection Chambers (TPCs) with Micromesh Gas Structures (Micromegas) to the search of these particles is explored within this work. Both particles would produce an extremely low rate at very low energies in particle detectors. Micromegas detectors can provide both low background rates and low energy threshold, due to the high granularity, radiopurity and uniformity of the readout. Small (few cm wide) Micromegas detectors are used to image the ax ion-induced x-ray signal expected in the CERN Axion Solar Telescope (CAST) experiment. We show the background levels obtained in CAST and the prospects to further reduce them to the values required by the Internation Axion Observatory (IAXO). We also present TREX-DM. a scaled-up version of the Micromegas used in axion research, but this time dedicated to the low-mass WIMP detection. TREX-DM is a high-pressure Micromegas-based TPC designed to host a few hundreds of grams of light nuclei (argon or neon) with energy thresholds potentially at the level of 100 eV. The detector is described in detail, as well as the results of the commissioning and characterization phase on surface. Besides, the background model of TREX-DM is presented, along with the anticipated sensitivity of this search, which could go beyond current experimental limits.2018info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://zaguan.unizar.es/record/70255reponame:Zaguán. Repositorio Digital de la Universidad de Zaragozainstname:Universidad de ZaragozaInglésinfo:eu-repo/grantAgreement/EC/FP7/240054info:eu-repo/grantAgreement/ES/MINECO/Consolider-Ingenioinfo:eu-repo/grantAgreement/ES/MINECO/FPA2013-41085info:eu-repo/semantics/openAccessoai:zaguan.unizar.es:702552026-05-29T13:59:51Z
dc.title.none.fl_str_mv Micromegas for dark matter searches: CAST/IAXO & TREX-DM experiments
title Micromegas for dark matter searches: CAST/IAXO & TREX-DM experiments
spellingShingle Micromegas for dark matter searches: CAST/IAXO & TREX-DM experiments
Garza, J.G.
title_short Micromegas for dark matter searches: CAST/IAXO & TREX-DM experiments
title_full Micromegas for dark matter searches: CAST/IAXO & TREX-DM experiments
title_fullStr Micromegas for dark matter searches: CAST/IAXO & TREX-DM experiments
title_full_unstemmed Micromegas for dark matter searches: CAST/IAXO & TREX-DM experiments
title_sort Micromegas for dark matter searches: CAST/IAXO & TREX-DM experiments
dc.creator.none.fl_str_mv Garza, J.G.
Aune, S.
Aznar, F.
Castel, J.F.
Cebrian, S.
Dafni, T.
Ferrer-Ribas, E.
Galan, J.
Garcia, J.A.
Giomataris, I.
Iguaz, F.J.
Irastorza, I.G.
Luzon, G.
Mirallas, H.
Papaevangelou, T.
Peiro, A.
Tomas, A.
Vafeiadis, T.
author Garza, J.G.
author_facet Garza, J.G.
Aune, S.
Aznar, F.
Castel, J.F.
Cebrian, S.
Dafni, T.
Ferrer-Ribas, E.
Galan, J.
Garcia, J.A.
Giomataris, I.
Iguaz, F.J.
Irastorza, I.G.
Luzon, G.
Mirallas, H.
Papaevangelou, T.
Peiro, A.
Tomas, A.
Vafeiadis, T.
author_role author
author2 Aune, S.
Aznar, F.
Castel, J.F.
Cebrian, S.
Dafni, T.
Ferrer-Ribas, E.
Galan, J.
Garcia, J.A.
Giomataris, I.
Iguaz, F.J.
Irastorza, I.G.
Luzon, G.
Mirallas, H.
Papaevangelou, T.
Peiro, A.
Tomas, A.
Vafeiadis, T.
author2_role author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
description The most compelling candidates for Dark Matter to day are WIMPs and axions. The applicability of gasesous Time Projection Chambers (TPCs) with Micromesh Gas Structures (Micromegas) to the search of these particles is explored within this work. Both particles would produce an extremely low rate at very low energies in particle detectors. Micromegas detectors can provide both low background rates and low energy threshold, due to the high granularity, radiopurity and uniformity of the readout. Small (few cm wide) Micromegas detectors are used to image the ax ion-induced x-ray signal expected in the CERN Axion Solar Telescope (CAST) experiment. We show the background levels obtained in CAST and the prospects to further reduce them to the values required by the Internation Axion Observatory (IAXO). We also present TREX-DM. a scaled-up version of the Micromegas used in axion research, but this time dedicated to the low-mass WIMP detection. TREX-DM is a high-pressure Micromegas-based TPC designed to host a few hundreds of grams of light nuclei (argon or neon) with energy thresholds potentially at the level of 100 eV. The detector is described in detail, as well as the results of the commissioning and characterization phase on surface. Besides, the background model of TREX-DM is presented, along with the anticipated sensitivity of this search, which could go beyond current experimental limits.
publishDate 2018
dc.date.none.fl_str_mv 2018
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 http://zaguan.unizar.es/record/70255
url http://zaguan.unizar.es/record/70255
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv info:eu-repo/grantAgreement/EC/FP7/240054
info:eu-repo/grantAgreement/ES/MINECO/Consolider-Ingenio
info:eu-repo/grantAgreement/ES/MINECO/FPA2013-41085
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
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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