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

• DOI: 10.48550/arxiv.2005.06467
• Publication Date: 2020-01-01
• Authors: C. Adams; V. Álvarez; L. Arazi; I. J. Arnquist; C.D.R. Azevedo; K. Bailey; F. Ballester; J. M. Benlloch-Ro...; F.I.G.M. Borges; N. Byrnes; S. Cárcel; J.V. Carríon; Shiwen An; E. Church; C.A.N. Conde; T. Contreras; G. A. Díaz; J. Dı́az; M. Diesburg; J. Escada; R. Esteve; R. Felkai; A. F. M. Fernandes; L. M. P. Fernandes; P. Ferrario; A. L. Ferreira; E.D.C. Freitas; J. Generowicz; S. Ghosh; A. Goldschmidt; J.J. Gómez-Cadenas; D. González-Díaz; R. Guénette; Rafael Gutiérrez; J. Haefner; K. Hafidi; J. M. Hauptman; C. A. O. Henriques; J. A. Hernando Mo...; P. Herrero-Gómez; V. Herrero; Y. Ifergan; S. Johnston; B. J. P. Jones; M. Kekic; L. Labarga; A. Laing; P. Lebrun; N. López-March; M. Losada; R. D. P. Mano; J. Martín-Albo; Ángel T. Martı́nez; M. Martínez-Vara; G. Martínez-Lema; A.D. McDonald; F. Monrabal; C.M.B. Monteiro; Francisco Mora; J. Muñoz Vidal; P. Novella; D. R. Nygren; B. Palmeiro; A. Para; Juan C. Pérez; M. Querol; A. B. Redwine; J. Renner; J. Repond; S. Riordan; L. Ripoll; Y. Rodriguez Garca; J. Rodrguez; L. Rogers; B. Romeo; C. Romo-Luque; F.P. Santos; J.M.F. dos Santos; A. Simón; C. Sofka; M. Sorel; T. Stiegler; J.F. Toledo; J. Torrent; A. Usón; J.F.C.A. Veloso; R. Webb; R. Weiss-Babai; James T. White; K. Woodruff; N. Yahlali
• Keywords: Radiogenic nuclide

The Neutrino Experiment with a Xenon TPC (NEXT) searches for the neutrinoless double-beta decay of Xe-136 using high-pressure xenon gas TPCs electroluminescent amplification. A scaled-up version this technology about 1 tonne enriched could reach in less than 5 years operation sensitivity to half-life better 1E27 years, improving current limits by at least one order magnitude. This prediction is based on well-understood background model dominated radiogenic sources. detector concept presented here represents first step compelling path towards parameter space defined inverted ordering neutrino masses, and beyond.