We have performed a search for neutrinoless β+EC decay of Te120 using the final CUORE-0 data release. We describe a new analysis method for the simultaneous fit of signatures with different event topology, and of data subsets with different signal efficiency, obtaining a limit on the half-life of the decay of T1/2>1.6×1021 yr at 90% credibility interval (CI). Combining this with results from Cuoricino, a predecessor experiment, we obtain the strongest limit to date, corresponding to T1/2>2.7×1021 yr at 90% CI
Alduino, C., Alfonso, K., Artusa, D., Avignone, F., Azzolini, O., Bari, G., et al. (2018). Search for neutrinoless β+ EC decay of Te 120 with CUORE-0. PHYSICAL REVIEW C, 97(5) [10.1103/PhysRevC.97.055502].
Search for neutrinoless β+ EC decay of Te 120 with CUORE-0
Biassoni, M.;Branca, A.;Brofferio, C.;Canonica, L.;Capelli, S.;Carniti, P.;Cassina, L.;Chiesa, D.;Clemenza, M.;Cremonesi, O.;Dell'Oro, S.;Faverzani, M.;Ferri, E.;Fiorini, E.;Giachero, A.;Gironi, L.;Gotti, C.;Nastasi, M.;Nucciotti, A.;Pattavina, L.;Pavan, M.;Pessina, G.;Pozzi, S.;Previtali, E.;Sisti, M.;Terranova, F.;Zanotti, L.;
2018
Abstract
We have performed a search for neutrinoless β+EC decay of Te120 using the final CUORE-0 data release. We describe a new analysis method for the simultaneous fit of signatures with different event topology, and of data subsets with different signal efficiency, obtaining a limit on the half-life of the decay of T1/2>1.6×1021 yr at 90% credibility interval (CI). Combining this with results from Cuoricino, a predecessor experiment, we obtain the strongest limit to date, corresponding to T1/2>2.7×1021 yr at 90% CI
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