000056653 001__ 56653 000056653 005__ 20200221144252.0 000056653 0247_ $$2doi$$a10.1016/j.nuclphysbps.2015.10.006 000056653 0248_ $$2sideral$$a95704 000056653 037__ $$aART-2016-95704 000056653 041__ $$aeng 000056653 100__ $$aNebot-Guinot, M. 000056653 245__ $$aBackgrounds and sensitivity of the NEXT double beta decay experiment 000056653 260__ $$c2016 000056653 5060_ $$aAccess copy available to the general public$$fUnrestricted 000056653 5203_ $$aNEXT (Neutrino Experiment with a Xenon TPC) is a neutrinoless double-beta (ßß0¿ßß0¿) decay experiment that will operate at the Canfranc Underground Laboratory (LSC). It is an electroluminescent high-pressure gaseous xenon Time Projection Chamber (TPC) with separate read-out planes for calorimetry and tracking. Energy resolution and background suppression are the two key features of any neutrinoless double beta decay experiment. NEXT has both good energy resolution (<1% FWHM) at the Q value of 136Xe and an extra handle for background identification provided by track reconstruction. With the background model of NEXT, based on the detector simulation and the evaluation of the detector radiopurity, we can determine the sensitivity to a measurement of the ßß2¿ßß2¿ mode in NEW and to a ßß0¿ßß0¿ search in NEXT100. In this way we can predict the background rate of 5×10-4 counts/(keV kg yr)5×10-4 counts/(keV kg yr), and a sensitivity to the Majorana neutrino mass down to 100 meV after a 5-years run of NEXT100. 000056653 536__ $$9info:eu-repo/grantAgreement/ES/MINECO/FPA2009-13697-C04-04$$9info:eu-repo/grantAgreement/ES/MINECO/FIS2012-37947-C04$$9info:eu-repo/grantAgreement/ES/MINECO/Consolider-Ingenio-2010/CSD2008-00037$$9info:eu-repo/grantAgreement/EC/FP7/339787/EU/Towards the NEXT generation of bb0nu experimets/NEXT 000056653 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/ 000056653 592__ $$a0.313$$b2016 000056653 593__ $$aNuclear and High Energy Physics$$c2016$$dQ3 000056653 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion 000056653 700__ $$aFerrario, P. 000056653 700__ $$aMartín-Albo, J. 000056653 700__ $$aMuñoz Vidal, J. 000056653 700__ $$aGómez-Cadena, J.J. 000056653 700__ $$0(orcid)0000-0002-6948-5101$$aon behalf of the NEXT Collaboration$$uUniversidad de Zaragoza 000056653 7102_ $$12004$$2390$$aUniversidad de Zaragoza$$bDpto. Física Teórica$$cÁrea Física Atóm.Molec.y Nucl. 000056653 773__ $$g273-275 (2016), 2612–2614$$pNuclear and particle physics proceedings.$$tNuclear and Particle Physics Proceedings$$x2405-6014 000056653 8564_ $$s257747$$uhttps://zaguan.unizar.es/record/56653/files/texto_completo.pdf$$yVersión publicada 000056653 8564_ $$s87392$$uhttps://zaguan.unizar.es/record/56653/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada 000056653 909CO $$ooai:zaguan.unizar.es:56653$$particulos$$pdriver 000056653 951__ $$a2020-02-21-13:28:25 000056653 980__ $$aARTICLE