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Sensitivity of a tonne-scale NEXT detector for neutrinoless double beta decay searches

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arxiv 2005.06467 v2 pith:GONOCTBN submitted 2020-05-13 physics.ins-det nucl-ex

Sensitivity of a tonne-scale NEXT detector for neutrinoless double beta decay searches

NEXT Collaboration: C. Adams , V. \'Alvarez , L. Arazi , I.J. Arnquist , C.D.R Azevedo , K. Bailey , F. Ballester , J.M. Benlloch-Rodr\'iguez
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F.I.G.M. Borges N. Byrnes S. C\'arcel J.V. Carri\'on S. Cebri\'an E. Church C.A.N. Conde T. Contreras A.A. Denisenko G. D\'iaz J. D\'iaz J. Escada R. Esteve R. Felkai L.M.P. Fernandes P. Ferrario A.L. Ferreira F. Foss E.D.C. Freitas Z. Freixa J. Generowicz A. Goldschmidt J.J. G\'omez-Cadenas R. Gonz\'alez D. Gonz\'alez-D\'iaz S. Gosh R. Guenette R.M. Guti\'errez J. Haefner K. Hafidi J. Hauptman C.A.O. Henriques J.A. Hernando Morata P. Herrero V. Herrero J. Ho Y. Ifergan B.J.P. Jones M. Kekic L. Labarga A. Laing P. Lebrun N. L\'opez-March M. Losada R.D.P. Mano J. Mart\'in-Albo A. Mart\'inez M. Mart\'inez-Vara G. Mart\'inez-Lema A.D. McDonald Z.E. Meziani F. Monrabal C.M.B. Monteiro F.J. Mora J. Mu\~noz Vidal C. Newhouse P. Novella D.R. Nygren E. Oblak B. Palmeiro A. Para J. P\'erez M. Querol A. Redwine J. Renner L. Ripoll I. Rivilla Y. Rodr\'iguez Garc\'ia J. Rodr\'iguez C. Rogero L. Rogers B. Romeo C. Romo-Luque F.P. Santos J.M.F. dos Santos A. Sim\'on M. Sorel C. Stanford J.M.R. Teixeira P. Thapa J.F. Toledo J. Torrent A. Us\'on J.F.C.A. Veloso T.T. Vuong R. Webb R. Weiss-Babai J.T. White K. Woodruff N. Yahlali
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classification physics.ins-det nucl-ex
keywords decayneutrinolesssensitivityxenondetectordouble-betaneutrinonext
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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The Neutrino Experiment with a Xenon TPC (NEXT) searches for the neutrinoless double-beta decay of Xe-136 using high-pressure xenon gas TPCs with electroluminescent amplification. A scaled-up version of this technology with about 1 tonne of enriched xenon could reach in less than 5 years of operation a sensitivity to the half-life of neutrinoless double-beta decay decay better than 1E27 years, improving the current limits by at least one order of magnitude. This prediction is based on a well-understood background model dominated by radiogenic sources. The detector concept presented here represents a first step on a compelling path towards sensitivity to the parameter space defined by the inverted ordering of neutrino masses, and beyond.

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