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Ferrario, Paola
Laing, Andrew López-March, N. Gómez Cadenas, Juan José Álvarez Puerta, Vicente Azevedo, C.D.R. Borges, Filipa I.G.M. Cárcel García, Sara Cebrián, Susana Cervera Villanueva, Anselmo Conde, Carlos A.N. Dafni, Theopisti Díaz Medina, José Diesburg, M. Esteve, Raúl Fernandes, L.M.P. Ferreira, Antonio Luis Freitas, Elisabete D.C. Gehman, Victor M. Goldschmidt, Azriel González-Díaz, Diego Gutiérrez, Rafael María Hauptman, John M. Henriques, C.A.O. Hernando Morata, J.A. Irastorza, Igor Garcia Labarga, Luis A. Lebrun, P. Liubarsky, Igor Lorca Galindo, David Losada, Marta Luzón, Gloria Marí, A. Martín-Albo Simón, Justo Martínez Lema, Gonzalo Martínez Pérez, Alberto Miller, Tom P. Monrabal Capilla, Francesc Monserrate, M. Monteiro, Cristina M.B. Mora, Francisco José Moutinho, L.M. Muñoz Vidal, J. Nebot Guinot, Miquel Novella, P. Nygren, David R. Para, A. Pérez, Javier Martin Pérez Aparicio, J.L. 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 Toledo, J.F. Torrent Collell, Jordi Tsamalaidze, Zviadi Veloso, João F.C.A. Villar, José Ángel Webb, R.C. White, James T. Yahlali Haddou, Nadia Yepes-Ramírez, H. |
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| 2016 January 19 | |
| The NEXT experiment aims to observe the neutrinoless double beta decay of 136Xe in a high-pressure xenon gas TPC using electroluminescence (EL) to amplify the signal from ionization. One of the main advantages of this technology is the possibility to reconstruct the topology of events with energies close to Qββ. This paper presents the first demonstration that the topology provides extra handles to reject background events using data obtained with the NEXT-DEMO prototype. Single electrons resulting from the interactions of 22Na 1275 keV gammas and electronpositron pairs produced by conversions of gammas from the 228Th decay chain were used to represent the background and the signal in a double beta decay. These data were used to develop algorithms for the reconstruction of tracks and the identification of the energy deposited at the end-points, providing an extra background rejection factor of 24.3 ± 1.4 (stat.)%, while maintaining an efficiency of 66.7 ± 1.% for signal events | |
| application/pdf | |
| 025211 | |
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1029-8479 (versió paper) 1126-6708 (versió electrònica) |
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| http://hdl.handle.net/10256/13985 | |
| eng | |
| Scuola Internazionale Superiore di Studi Avanzati (SISSA) | |
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Reproducció digital del document publicat a: http://dx.doi.org/10.1007/JHEP01(2016)104 Articles publicats (D-EMCI) |
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| Journal of High Energy Physics, 2016, núm. 104 | |
| Attribution 4.0 Spain | |
| http://creativecommons.org/licenses/by/4.0/es/ | |
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Matèria fosca (Astronomia)
Dark matter (Astronomy) Desintegració beta Beta Decay |
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| First proof of topological signature in the high pressure xenon gas TPC with electroluminescence amplification for the NEXT experiment | |
| info:eu-repo/semantics/article | |
| DUGiDocs |
