000145009 001__ 145009 000145009 005__ 20240920135618.0 000145009 0247_ $$2doi$$a10.1088/1748-0221/19/05/C05029 000145009 0248_ $$2sideral$$a139670 000145009 037__ $$aART-2024-139670 000145009 041__ $$aeng 000145009 100__ $$0(orcid)0000-0003-3532-7540$$aCastel, J. F.$$uUniversidad de Zaragoza 000145009 245__ $$aSearching for WIMPs with TREX-DM: achievements and challenges 000145009 260__ $$c2024 000145009 5060_ $$aAccess copy available to the general public$$fUnrestricted 000145009 5203_ $$aThe TREX-DM detector, a low background chamber with microbulk Micromegas readout, was commissioned in the Canfranc Underground Laboratory (LSC) in 2018. Since then, data taking campaigns have been carried out with argon and neon mixtures, at different pressures from 1 to 4 bar. By achieving a low energy threshold of 1 keVee and a background level of 80 counts keV-1 kg-1 day-1 in the region from 1 to 7 keVee, the experiment demonstrates its potential to search for low-mass WIMPs. Two of the most important challenges currently faced are the reduction of both, background level and energy threshold. With respect to the energy threshold, recently a new readout plane is being developed, based on the combination of Micromegas and GEM technologies, aiming to have a pre-amplification stage that would permit very low energy thresholds, close to the single-electron ionization energy. With respect to the background reduction, apart from studies to identify and minimize contamination population, a high sensitivity alpha detector is being developed in order to allow a proper material selection for the TREX-DM detector components. Both challenges, together with the optimization of the gas mixture used as target for the WIMP detection, will take TREX-DM to explore regions of WIMP's mass below 1 GeV c-2. 000145009 536__ $$9info:eu-repo/grantAgreement/EC/H2020/788781/EU/Towards the detection of the axion with the International Axion Observatory/IAXOplus$$9This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No H2020 788781-IAXOplus$$9info:eu-repo/grantAgreement/ES/MINECO/PID2019-108122GB-C31 000145009 540__ $$9info:eu-repo/semantics/openAccess$$aAll rights reserved$$uhttp://www.europeana.eu/rights/rr-f/ 000145009 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/acceptedVersion 000145009 700__ $$0(orcid)0000-0002-6948-5101$$aCebrián, S.$$uUniversidad de Zaragoza 000145009 700__ $$0(orcid)0000-0002-8921-910X$$aDafni, T.$$uUniversidad de Zaragoza 000145009 700__ $$aDíez Ibáñez, D.$$uUniversidad de Zaragoza 000145009 700__ $$0(orcid)0009-0001-8374-6128$$aEzquerro, A.$$uUniversidad de Zaragoza 000145009 700__ $$0(orcid)0000-0001-7529-9834$$aGalán, J.$$uUniversidad de Zaragoza 000145009 700__ $$0(orcid)0000-0002-7399-7353$$aGarcía, J. A.$$uUniversidad de Zaragoza 000145009 700__ $$0(orcid)0000-0003-1163-1687$$aGarcía Irastorza, Igor$$uUniversidad de Zaragoza 000145009 700__ $$0(orcid)0009-0005-7060-5341$$aJiménez, M.$$uUniversidad de Zaragoza 000145009 700__ $$0(orcid)0000-0002-5352-1884$$aLuzón, G.$$uUniversidad de Zaragoza 000145009 700__ $$0(orcid)0000-0001-6213-5590$$aMargalejo, C.$$uUniversidad de Zaragoza 000145009 700__ $$aMira, Ángel de$$uUniversidad de Zaragoza 000145009 700__ $$0(orcid)0000-0002-9951-8680$$aMirallas, H.$$uUniversidad de Zaragoza 000145009 700__ $$0(orcid)0000-0002-7990-2060$$aObis, L.$$uUniversidad de Zaragoza 000145009 700__ $$0(orcid)0000-0001-8278-6032$$aOrtiz de Solórzano, A.$$uUniversidad de Zaragoza 000145009 700__ $$aPérez, O.$$uUniversidad de Zaragoza 000145009 700__ $$0(orcid)0000-0002-3253-7027$$aRuz, J.$$uUniversidad de Zaragoza 000145009 700__ $$0(orcid)0000-0002-5850-5517$$aVogel, J.$$uUniversidad de Zaragoza 000145009 7102_ $$12004$$2X$$aUniversidad de Zaragoza$$bDpto. Física Teórica$$cProy. investigación HCA 000145009 7102_ $$12004$$2390$$aUniversidad de Zaragoza$$bDpto. Física Teórica$$cÁrea Física Atóm.Molec.y Nucl. 000145009 773__ $$g19, 05 (2024), C05029 [9 p.]$$pJournal of Instrumentation$$tJournal of Instrumentation$$x1748-0221 000145009 8564_ $$s976013$$uhttps://zaguan.unizar.es/record/145009/files/texto_completo.pdf$$yPostprint 000145009 8564_ $$s1556546$$uhttps://zaguan.unizar.es/record/145009/files/texto_completo.jpg?subformat=icon$$xicon$$yPostprint 000145009 909CO $$ooai:zaguan.unizar.es:145009$$particulos$$pdriver 000145009 951__ $$a2024-09-20-13:02:22 000145009 980__ $$aARTICLE