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Measurement of the 2νββ decay half-life and search for the 0νββ decay of Cd 116 with the NEMO-3 detector

  • (NEMO-3 Collaboration)

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Abstract

The NEMO-3 experiment measured the half-life of the 2νββ decay and searched for the 0νββ decay of Cd116. Using 410 g of Cd116 installed in the detector with an exposure of 5.26 y, (4968±74) events corresponding to the 2νββ decay of Cd116 to the ground state of Sn116 have been observed with a signal to background ratio of about 12. The half-life of the 2νββ decay has been measured to be T1/22ν=[2.74±0.04(stat)±0.18(syst)]×1019 y. No events have been observed above the expected background while searching for 0νββ decay. The corresponding limit on the half-life is determined to be T1/20ν≥1.0×1023 y at the 90% C.L.

Original languageEnglish
Article number012007
JournalPhysical Review D
Volume95
Issue number1
DOIs
StatePublished - Jan 17 2017

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