Detalle de: Measurement of the Xe 136 two-neutrino double- β -decay half-life via direct background subtraction in NEXT
| Title | Measurement of the Xe 136 two-neutrino double- β -decay half-life via direct background subtraction in NEXT |
| Abstract |
We report a measurement of the half-life of the $^{136}\mathrm{Xe}$ two-neutrino double-$\ensuremath{\beta}$ decay performed with a novel direct-background-subtraction technique. The analysis relies on the data collected with the NEXT-White detector operated with $^{136}\mathrm{Xe}$-enriched and $^{136}\mathrm{Xe}$-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 $2.{34}_{\ensuremath{-}0.46}^{+0.80}{\text{(stat)}}_{\ensuremath{-}0.17}^{+0.30}\text{(sys)}\ifmmode\times\else\texttimes\fi{}{10}^{21}\phantom{\rule{3.33333pt}{0ex}}\text{yr}$ is derived from the background-subtracted energy spectrum. The presented technique demonstrates the feasibility of unique background-model-independent neutrinoless double-$\ensuremath{\beta}$-decay searches. |
| Apa Reference | 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., 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., Lopez Gutierrez, 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. (2022). Measurement of the Xe 136 two-neutrino double- β -decay half-life via direct background subtraction in NEXT. Physical Review C, 105(5). 10.1103/PhysRevC.105.055501 |
| Doi | 10.1103/PhysRevC.105.055501 |
| Publication Date | 10 May 2022 |
| Publication Type | Article |
| Researcher | José Vicente Carrión Burguete |
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