doi:10.1103/PhysRevC.105.055501engNovella, P.Sorel, M.Usón, A.Adams, C.Almazán, H.Álvarez, V.Aparicio, B.Aranburu, A. I.Arazi, L.Arnquist, I. J.Ayet, S.Azevedo, C. D. R.Bailey, K.Ballester, F.Benlloch-Rodríguez, J. M.Borges, F. I. G. M.Bounasser, S.Byrnes, N.Cárcel, S.Carrión, J. V.Cebrián, S.Church, E.Conde, C. A. N.Contreras, T.Cossío, F. P.Denisenko, A. A.Díaz, G.Díaz, J.Dickel, T.Escada, J.Esteve, R.Fahs, A.Felkai, R.Fernandes, L. M. P.Ferrario, P.Ferreira, A. L.Foss, F. W.Freitas, E. D. C.Freixa, Z.Generowicz, J.Goldschmidt, A.Gómez-Cadenas, J. J.González, R.González-Díaz, D.Guenette, R.Gutiérrez, R. M.Haefner, J.Hafidi, K.Hauptman, J.Henriques, C. A. O.Hernando Morata, J. A.Herrero-Gómez, P.Herrero, V.Ho, J.Ifergan, Y.Jones, B. J. P.Kekic, M.Labarga, L.Laing, A.Larizgoitia, L.Lebrun, P.López Gutiérrez, D.López-March, N.Losada, M.Mano, R. D. P.Martín-Albo, J.Martínez, A.Martínez-Lema, G.Martínez-Vara, M.McDonald, A. D.Meziani, Z. E.Mistry, K.Monrabal, F.Monteiro, C. M. B.Mora, F. J.Muñoz Vidal, J.Navarro, K.Nygren, D. R.Oblak, E.Odriozola-Gimeno, M.Palmeiro, B.Para, A.Pérez, J.Querol, M.Raymond, A.Redwine, A. B.Renner, J.Ripoll, L.Rivilla, I.Rodríguez García, Y.Rodríguez, J.Rogero, C.Rogers, L.Romeo, B.Romo-Luque, C.Santos, F. P.Dos Santos, J. M. F.Simón, A.Stanford, C.Teixeira, J. M. R.Thapa, P.Toledo, J. F.Torrent, J.Veloso, J. F. C. A.Vuong, T. T.Webb, R.White, J. T.Woodruff, K.Yahlali, N.Collaboration, NEXTMeasurement of the Xe 136 two-neutrino double- ß -decay half-life via direct background subtraction in NEXTART-2022-129413We report a measurement of the half-life of the Xe136 two-neutrino double-ß decay performed with a novel direct-background-subtraction technique. The analysis relies on the data collected with the NEXT-White detector operated with Xe136-enriched and Xe136-depleted xenon, as well as on the topology of double-electron tracks. With a fiducial mass of only 3.5 kg of Xe, a half-life of 2.34-0.46+0.80(stat)-0.17+0.30(sys)×1021yr is derived from the background-subtracted energy spectrum. The presented technique demonstrates the feasibility of unique background-model-independent neutrinoless double-ß-decay searches. © 2022 American Physical Society.2022http://zaguan.unizar.es/record/11799510.1103/PhysRevC.105.055501http://zaguan.unizar.es/record/117995oai:zaguan.unizar.es:117995Physical Review C 105, 5 (2022), 055501 [8 pp.]byhttp://creativecommons.org/licenses/by/3.0/es/info:eu-repo/semantics/openAccess