Sensitivity of NEXT-100 to neutrinoless double beta decay

NEXT-100 is an electroluminescent high-pressure xenon gas time projection chamber that will search for the neutrinoless double beta decay of Xe-136. The detector possesses two features of great value in neutrinoless double beta decay searches: very good energy resolution (better than 1% FWHM at the...

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Detalles Bibliográficos
Autores principales: Martín-Albo, J., Muñoz Vidal, J., Ferrario, P., Nebot-Guinot, M., Gómez-Cadenas, J.J., Álvarez, V., Azevedo, C.D.R., Borges, F.I.G., Cárcel, S., Cebrián, S., Cervera, A., Conde, C.A.N., Díaz, J., Diesburg, M., Esteve, R., Fernandes, L.M.P., Ferreira, A.L., Freitas, E.D.C., Gehman, V.M., Goldschmidt, A., González-Díaz, D., Gutiérrez, R.M., Henriques, C.A.O., Hernando Morata, J.A., Labarga, L., Laing, A., Lebrun, P., Liubarsky, I., López-March, N., Lorca, D., Losada, M., Martínez-Lema, G., Martínez, A., Miller, T., Monrabal, F., Monserrate, M., Monteiro, C.M.B., Mora, F.J., Moutinho, L.M., Novella, P., Nygren, D., Para, A., Perez, J., Perez Aparicio, J.L., Querol, M., Renner, J., Ripoll, L., Rodríguez, J., Santos, F.P., dos Santos, J.M.F., Serra, L., Shuman, D., Simón, A., Sofka, C., Sorel, M., Stiegler, T., Toledo, J.F., Torrent, J., Tsamalaidze, Z., Veloso, J.F.C.A., Villar, J.A., Webb, R., White, J.T., Yahlali, N., Yepes-Ramírez, H., Hauptman, J.
Lenguaje:eng
Publicado: 2015
Materias:
Detectors and Experimental Techniques
Acceso en línea:https://dx.doi.org/10.1007/JHEP05(2016)159
http://cds.cern.ch/record/2109831
Descripción
Sumario:NEXT-100 is an electroluminescent high-pressure xenon gas time projection chamber that will search for the neutrinoless double beta decay of Xe-136. The detector possesses two features of great value in neutrinoless double beta decay searches: very good energy resolution (better than 1% FWHM at the Q value of Xe-136) and track reconstruction for the discrimination of signal and background events. This combination results in excellent sensitivity, as discussed in this paper. Detailed Monte Carlo detector simulations and material-screening measurements predict a background rate for NEXT-100 of at most 0.0004 counts/(keV kg yr). Accordingly, the detector will reach a sensitivity to the neutrinoless double beta decay half-life of 6.E25 years after running for 3 effective years.

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