Journal
EUROPEAN PHYSICAL JOURNAL C
Volume 77, Issue 8, Pages -Publisher
SPRINGER
DOI: 10.1140/epjc/s10052-017-5098-9
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Funding
- Istituto Nazionale di Fisica Nucleare (INFN)
- National Science Foundation [NSF-PHY-0605119, NSF-PHY-0500337, NSF-PHY-0855314, NSF-PHY-0902171, NSF-PHY-0969852, NSF-PHY-1307204, NSF-PHY-1314881, NSF-PHY-1401832, NSF-PHY-1404205]
- Alfred P. Sloan Foundation
- University of Wisconsin Foundation
- Yale University
- US Department of Energy (DOE) Office of Science [DE-AC02-05CH1-1231, DE-AC52-07NA27344, DE-SC0012654]
- DOE Office of Science, Office of Nuclear Physics [DE-FG02-08ER41551, DE-FG03-00ER41138]
- National Energy Research Scientific Computing Center (NERSC)
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We report a study of the CUORE sensitivity to neutrinoless double beta (0 nu beta beta) decay. We used a Bayesian analysis based on a toy MonteCarlo (MC) approach to extract the exclusion sensitivity to the 0 nu beta beta decay half-life (T-1/2(0 nu)) at 90% credibility interval (CI) - i.e. the interval containing the true value of T-1/2(0 nu) with 90% probability - and the 3 sigma 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 . 10(25) year with 3 months, and 9 .10(25) year with 5 years of live time. Under the same conditions, the discovery sensitivity after 3 months and 5 years will be 7 . 10(24) year and 4 . 10(25) year, respectively.
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