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 (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 rec...

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Autores: Martín-Albo Simón, Justo, Muñoz Vidal, J., Ferrario, Paola, Nebot Guinot, Miquel, Gómez Cadenas, Juan José, Álvarez Puerta, Vicente, Azevedo, C.D.R., Borges, Filipa I.G.M., Cárcel García, Sara, Carrión, J.V., Cebrián, Susana, Cervera Villanueva, Anselmo, Conde, Carlos A.N., Díaz Medina, José, Diesburg, M., Esteve, Raúl, Fernandes, L.M.P., Ferreira, Antonio Luis, Freitas, Elisabete D.C., Goldschmidt, Azriel, González-Díaz, Diego, Gutiérrez, Rafael María, Hauptman, John M., Henriques, C.A.O., Hernando Morata, J.A., Herrero, Vicente, Labarga, Luis A., Laing, Andrew, Lebrun, P., Liubarsky, Igor, López-March, N., Lorca Galindo, David, Losada, Marta, Martínez Lema, Gonzalo, Martínez Pérez, Alberto, Monrabal Capilla, Francesc, Monteiro, Cristina M.B., Mora, Francisco José, Moutinho, L.M., Novella, P., Nygren, David R., Palmeiro, B., Para, A., Querol, M., Renner, Joshua, Ripoll Masferrer, Lluís, Rodríguez Samaniego, Javier, Santos, Filomena P., dos Santos, Joaquim M.F., Serra Díaz-Cano, Luis, Shuman, Derek B., Simón Estévez, Ander, Sofka, C., Sorel, Michel, Stiegler, T., Toledo, J.F., Torrent Collell, Jordi, Tsamalaidze, Zviadi, Veloso, João F.C.A., Webb, R.C., White, James T., Yahlali Haddou, Nadia, Yepes-Ramírez, H.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2016
País:España
Institución:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:10256/13984
Acceso en línea:http://hdl.handle.net/10256/13984
Access Level:acceso abierto
Palabra clave:Detectors
Detectors de gasos
Gas detectors
Descripción
Sumario: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, or 6.0 × 1025 years after a run of 3 effective years

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