131119 20241125101138.0 doi 10.1007/JHEP09(2023)190 sideral 136758 ART-2023-136758 eng Novella, P. Demonstration of neutrinoless double beta decay searches in gaseous xenon with NEXT 2023 Access copy available to the general public Unrestricted The NEXT experiment aims at the sensitive search of the neutrinoless double beta decay in 136Xe, using high-pressure gas electroluminescent time projection chambers. The NEXT-White detector is the first radiopure demonstrator of this technology, operated in the Laboratorio Subterráneo de Canfranc. Achieving an energy resolution of 1% FWHM at 2.6 MeV and further background rejection by means of the topology of the reconstructed tracks, NEXT-White has been exploited beyond its original goals in order to perform a neu- trinoless double beta decay search. The analysis considers the combination of 271.6 days of 136Xe-enriched data and 208.9 days of 136Xe-depleted data. A detailed background modeling and measurement has been developed, ensuring the time stability of the radiogenic and cosmogenic contributions across both data samples. Limits to the neutrinoless mode are obtained in two alternative analyses: a background-model-dependent approach and a novel direct background-subtraction technique, offering results with small dependence on the background model assumptions. With a fiducial mass of only 3.50 ± 0.01 kg of 136Xe-enriched xenon, 90% C.L. lower limits to the neutrinoless double beta decay are found in the > 5.5 × 1023 − 1.3 × 1024 yr range, depending on the method. The presented techniques stand as a proof-of-concept for the searches to be implemented with larger NEXT detectors. info:eu-repo/grantAgreement/EC/ERC/951281/EU/A background-free experiment to discover the nature of neutrinos based on single Barium Atom Light Detection/BOLD info:eu-repo/grantAgreement/EC/H2020/957202/EU/HINDERING DENDRITE GROWTH IN LITHIUM METAL BATTERIES/HIDDEN This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No H2020 957202-HIDDEN info:eu-repo/grantAgreement/ES/MICINN/PID2021-125475NB info:eu-repo/grantAgreement/ES/MINECO/CEX2018-000867-S info:eu-repo/semantics/openAccess by http://creativecommons.org/licenses/by/3.0/es/ 5.0 2023 PHYSICS, PARTICLES & FIELDS 6 / 31 = 0.194 2023 Q1 T1 0.832 2023 Nuclear and High Energy Physics 2023 Q2 10.0 2023 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Sorel, M. Usón, A. Adams, C. Almazán, H. Álvarez, V. Aparicio, B. Aranburu, A. I. Arazi, L. Arnquist, I. J. Auria-Luna, F. Ayet, S. Azevedo, C. D. R. Bailey, K. Ballester, F. del Barrio-Torregrosa, M. Bayo, A. Benlloch-Rodríguez, J. M. Borges, F. I. G. M. Bounasser, S. Byrnes, N. Cárcel, S. Carrión, J. V. Cebrián, S. Universidad de Zaragoza (orcid)0000-0002-6948-5101 Church, E. Cid, L. Conde, C. A. N. Contreras, T. Cossío, F. P. Dey, E. Díaz, G. Dickel, T. Elorza, M. 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. Grocott, J. Guenette, R. Haefner, J. Hafidi, K. Hauptman, J. Henriques, C. A. O. Hernando Morata, J. A. Herrero-Gómez, P. Herrero, V. Hervés Carrete, C. Ho, J. Ho, P. Ifergan, Y. Jones, B. J. P. Labarga, L. Larizgoitia, L. Larumbe, A. Lebrun, P. Lopez, F. Lopez Gutierrez, D. López-March, N. Madigan, R. Mano, R. D. P. Marques, A. P. Martín-Albo, J. Martínez-Lema, G. Martínez-Vara, M. Meziani, Z. E. Miller, R. L. Mistry, K. Molina-Canteras, J. Monrabal, F. Monteiro, C. M. B. Mora, F. J. Muñoz Vidal, J. Navarro, K. Nuñez, A. Nygren, D. R. Oblak, E. Odriozola-Gimeno, M. Palacio, J. Palmeiro, B. Para, A. Parmaksiz, I. Pelegrin, J. Pérez Maneiro, M. Querol, M. Redwine, A. B. Renner, J. Rivilla, I. Rodríguez, J. Rogero, C. Rogers, L. Romeo, B. Romo-Luque, C. Santos, F. P. dos Santos, J. M. F. Simón, A. Soleti, S. R. Stanford, C. Teixeira, J. M. R. Toledo, J. F. Torrent, J. Veloso, J. F. C. A. Vuong, T. T. Waiton, J. White, J. T. 2004 390 Universidad de Zaragoza Dpto. Física Teórica Área Física Atóm.Molec.y Nucl. 2023, 9 (2023), [35 pp.] J. high energy phys. Journal of High Energy Physics 1126-6708 2421196 http://zaguan.unizar.es/record/131119/files/texto_completo.pdf Versión publicada 1732229 http://zaguan.unizar.es/record/131119/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:131119 articulos driver 2024-11-22-12:01:40 ARTICLE