Measurement of the Xe 136 two-neutrino double- ß -decay half-life via direct background subtraction in NEXT

Novella, 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. (Universidad de Zaragoza) ; Church, E. ; Conde, C. A. N. ; Contreras, T. ; Cossío, F. P. [...] Afficher les 110 auteurs
Resumen: We 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.
Idioma: Inglés
DOI: 10.1103/PhysRevC.105.055501
Año: 2022
Publicado en: Physical Review C 105, 5 (2022), 055501 [8 pp.]
ISSN: 2469-9985

Factor impacto JCR: 3.1 (2022)
Categ. JCR: PHYSICS, NUCLEAR rank: 7 / 19 = 0.368 (2022) - Q2 - T2
Factor impacto CITESCORE: 5.7 - Physics and Astronomy (Q1)

Factor impacto SCIMAGO: 1.305 - Nuclear and High Energy Physics (Q1)

Tipo y forma: Article (Published version)
Área (Departamento): Área Física Atóm.Molec.y Nucl. (Dpto. Física Teórica)
Exportado de SIDERAL (2024-03-18-15:47:29)


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articulos > articulos-por-area > fisica_atomica,_molecular_y_nuclear



 Notice créée le 2022-08-17, modifiée le 2024-03-19


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