CUORE sensitivity to $$0\nu \beta \beta $$ decay

CUORE sensitivity to $$0\nu \beta \beta $$ decay

We report a study of the CUORE sensitivity to neutrinoless double beta (0νββ) decay. We used a Bayesian analysis based on a toy Monte Carlo (MC) approach to extract the exclusion sensitivity to the 0νββ decay half-life (T1/20ν) at 90% credibility interval (CI) – i.e. the interval containing the true...

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Veröffentlicht in:The European physical journal. C, Particles and fields Particles and fields, 2017-08, Vol.77 (8), p.1-10, Article 532
Hauptverfasser: Alduino, C., Alfonso, K., Artusa, D. R., Avignone, F. T., Azzolini, O., Banks, T. I., Bari, G., Beeman, J. W., Bellini, F., Benato, G., Bersani, A., Biassoni, M., Branca, A., Brofferio, C., Bucci, C., Camacho, A., Caminata, A., Canonica, L., Cao, X. G., Capelli, S., Cappelli, L., Carbone, L., Cardani, L., Carniti, P., Casali, N., Cassina, L., Chiesa, D., Chott, N., Clemenza, M., Copello, S., Cosmelli, C., Cremonesi, O., Creswick, R. J., Cushman, J. S., D’Addabbo, A., Dafinei, I., Davis, C. J., Dell’Oro, S., Deninno, M. M., Di Domizio, S., Di Vacri, M. L., Drobizhev, A., Fang, D. Q., Faverzani, M., Fernandes, G., Ferri, E., Ferroni, F., Fiorini, E., Franceschi, M. A., Freedman, S. J., Fujikawa, B. K., Giachero, A., Gironi, L., Giuliani, A., Gladstone, L., Gorla, P., Gotti, C., Gutierrez, T. D., Haller, E. E., Han, K., Hansen, E., Heeger, K. M., Hennings-Yeomans, R., Hickerson, K. P., Huang, H. Z., Kadel, R., Keppel, G., Kolomensky, Yu. G., Leder, A., Ligi, C., Lim, K. E., Ma, Y. G., Maino, M., Marini, L., Martinez, M., Maruyama, R. H., Mei, Y., Moggi, N., Morganti, S., Mosteiro, P. J., Napolitano, T., Nastasi, M., Nones, C., Norman, E. B., Novati, V., Nucciotti, A., O’Donnell, T., Ouellet, J. L., Pagliarone, C. E., Pallavicini, M., Palmieri, V., Pattavina, L., Pavan, M., Pessina, G., Pettinacci, V., Piperno, G., Pira, C., Pirro, S., Pozzi, S., Previtali, E.
Format: Artikel
Sprache:eng
Schlagworte:
Bayesian analysis
Beta decay
Energy resolution
GENERAL STUDIES OF NUCLEAR REACTORS
Instrumentation and Detectors
Nuclear Experiment
NUCLEAR PHYSICS AND RADIATION PHYSICS
Physics
PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
Sensitivity analysis
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Zusammenfassung:We report a study of the CUORE sensitivity to neutrinoless double beta (0νββ) decay. We used a Bayesian analysis based on a toy Monte Carlo (MC) approach to extract the exclusion sensitivity to the 0νββ decay half-life (T1/20ν) at 90% credibility interval (CI) – i.e. the interval containing the true value of T1/20ν with 90% probability – and the 3σ discovery sensitivity. We consider various background levels and energy resolutions, and describe the influence of the data division in subsets with different background levels. If the background level and the energy resolution meet the expectation, CUORE will reach a 90% CI exclusion sensitivity of 2·1025 year with 3 months, and 9·1025 year with 5 years of live time. Under the same conditions, the discovery sensitivity after 3 months and 5 years will be 7·1024 year and 4·1025 year, respectively.
ISSN:1434-6044
1434-6052
DOI:10.1140/epjc/s10052-017-5098-9