Sensitivity of NEXT-100 to neutrinoless double beta decay
- Martín-Albo Simón, Justo
- Muñoz Vidal, J.
- Ferrario, Paola
- Nebot Guinot, Miquel
- Gómez Cadenas, Juan José
- Álvarez Puerta, Vicente
- Azevedo, C.D.R.
- Borges, F.I.G.
- Cárcel García, Sara
- Carrión, J.V.
- Cebrián, S.
- Cervera Villanueva, Anselmo
- Conde, C.A.N.
- Díaz Medina, José
- Diesburg, M.
- Esteve, R.
- Fernandes, L.M.P.
- Ferreira, A.L.
- Freitas, E.D.C.
- Goldschmidt, A.
- González-Díaz, Diego
- Gutiérrez, R.M.
- Hauptman, J.
- Henriques, C.A.O.
- Hernando Morata, J.A.
- Herrero, V.
- Labarga, L.
- Laing, A.
- Lebrun, P.
- Liubarsky, Igor
- López-March, N.
- Lorca Galindo, David
- Losada, M.
- Martínez Lema, G.
- Martínez, A.
- Monrabal Capilla, Francesc
- Monteiro, C.M.B.
- Mora, F.J.
- Moutinho, L.M.
- Novella, P.
- Nygren, D.
- Palmeiro, B.
- Para, A.
- Querol, M.
- Renner, J.
- Ripoll Masferrer, Lluís
- Rodríguez, J.
- Santos, F.P.
- Dos Santos, J.M.F.
- Serra, L.
- Shuman, D.
- Simón, A.
- Sofka, C.
- Sorel, Michel
- Stiegler, T.
- Toledo, J.F.
- Torrent Collell, J.
- Tsamalaidze, Z.
- Veloso, J.F.C.A.
- Webb, R.
- White, J.T.
- Yahlali Haddou, Nadia
- Yepes-Ramírez, H.
DOIAbstract
NEXT-100 is an electroluminescent high-pressure xenon gas time projection chamber that will search for the neutrinoless double beta (0νββ) decay of 136Xe. The detector possesses two features of great value for 0νββ searches: energy resolution better than 1% FWHM at the Q value of 136Xe and track reconstruction for the discrimination of signal and background events. This combination results in excellent sensitivity, as discussed in this paper. Material-screening measurements and a detailed Monte Carlo detector simulation predict a background rate for NEXT-100 of at most 4 × 10−4 counts keV−1 kg−1 yr−1. Accordingly, the detector will reach a sensitivity to the 0νββ-decay half-life of 2.8 × 1025 years (90% CL) for an exposure of 100 kg·year, o...
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