Energy calibration of the NEXT-White detector with 1% resolution near Q\(_{\beta\beta}\) of \(^{136}\)Xe

• Published in: arXiv.org 2019-10
• Main Authors: Renner, J, G Díaz López, Ferrario, P, Hernando Morata, J A, Kekic, M, Martínez-Lema, G, Monrabal, F, Gómez-Cadenas, J J, Adams, C, Álvarez, V, Arazi, L, Arnquist, I J, Azevedo, C D R, Bailey, K, Ballester, F, Benlloch-Rodríguez, J M, F I G M Borges, Byrnes, N, Cárcel, S, Carrión, J V, Cebrián, S, Church, E, Conde, C A N, Contreras, T, Díaz, J, Diesburg, M, Escada, J, Esteve, R, Felkai, R, Fernandes, A F M, Fernandes, L M P, Ferreira, A L, Freitas, E D C, Generowicz, J, Ghosh, S, Goldschmidt, A, González-Díaz, D, Guenette, R, Gutiérrez, R M, Haefner, J, Hafidi, K, Hauptman, J, Henriques, C A O, Herrero, P, Herrero, V, Ifergan, Y, Johnston, S, Jones, B J P, Labarga, L, Laing, A, Lebrun, P, López-March, N, Losada, M, Mano, R D P, Martín-Albo, J, Martínez, A, McDonald, A D, Monteiro, C M B, Mora, F J, J Muñoz Vidal, Novella, P, Nygren, D R, Palmeiro, B, Para, A, Pérez, J, Psihas, F, Querol, M, Repond, J, Riordan, S, Ripoll, L, Y Rodríguez García, Rodríguez, J, Rogers, L, Romeo, B, Romo-Luque, C, Santos, F P, J M F dos Santos, Simón, A, Sofka, C, Sorel, M, Stiegler, T, Toledo, J F, Torrent, J, Usón, A, J F C A Veloso, Webb, R, Weiss-Babai, R, White, J T, Woodruff, K, Yahlali, N, NEXT Collaboration
• Format: Article
• Language: English
• Subjects: Beta decay; Electroluminescence; Energy resolution; Neutrinos; Searching; Xenon
• ISSN: 2331-8422
• DOI: 10.48550/arxiv.1905.13110

Excellent energy resolution is one of the primary advantages of electroluminescent high pressure xenon TPCs, and searches for rare physics events such as neutrinoless double-beta decay (\(\beta\beta0\nu\)) require precise energy measurements. Using the NEXT-White detector, developed by the NEXT (Neutrino Experiment with a Xenon TPC) collaboration, we show for the first time that an energy resolution of 1% FWHM can be achieved at 2.6 MeV, establishing the present technology as the one with the best energy resolution of all xenon detectors for \(\beta\beta0\nu\) searches.