The CUPID-0 experiment searches for double beta decay using cryogenic calorimeters with double (heat and light) read-out. The detector, consisting of 24 ZnSe crystals 95% enriched in 82Se and two natural ZnSe crystals, started data-taking in 2017 at Laboratori Nazionali del Gran Sasso. We present the search for the neutrino-less double beta decay of 82Se into the 01+, 21+ and 22+ excited states of 82Kr with an exposure of 5.74 kg· yr (2.24× 1025 emitters· yr). We found no evidence of the decays and set the most stringent limits on the widths of these processes: Γ(82Se → 82Kr01+)8.55× 10- 24 yr- 1, Γ (82 Se → 82 Kr 21+)<6.25×10-24 yr- 1, Γ(82Se → 82Kr22+)8.25× 10- 24 yr- 1 (90% credible interval).

Azzolini, O., Barrera, M., Beeman, J., Bellini, F., Beretta, M., Biassoni, M., et al. (2018). Search of the neutrino-less double beta decay of 82 Se into the excited states of 82 Kr with CUPID-0. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS, 78(11) [10.1140/epjc/s10052-018-6340-9].

Search of the neutrino-less double beta decay of 82 Se into the excited states of 82 Kr with CUPID-0

Beretta, M.;Biassoni, M.;Brofferio, C.;Capelli, S.;Carniti, P.;Cassina, L.;Clemenza, M.;Cremonesi, O.;Gironi, L.;Gotti, C.;Nastasi, M.;Pagnanini, L.;Pavan, M.;Pessina, G.;Pozzi, S.;Previtali, E.;Puiu, A.;
2018

Abstract

The CUPID-0 experiment searches for double beta decay using cryogenic calorimeters with double (heat and light) read-out. The detector, consisting of 24 ZnSe crystals 95% enriched in 82Se and two natural ZnSe crystals, started data-taking in 2017 at Laboratori Nazionali del Gran Sasso. We present the search for the neutrino-less double beta decay of 82Se into the 01+, 21+ and 22+ excited states of 82Kr with an exposure of 5.74 kg· yr (2.24× 1025 emitters· yr). We found no evidence of the decays and set the most stringent limits on the widths of these processes: Γ(82Se → 82Kr01+)8.55× 10- 24 yr- 1, Γ (82 Se → 82 Kr 21+)<6.25×10-24 yr- 1, Γ(82Se → 82Kr22+)8.25× 10- 24 yr- 1 (90% credible interval).
Si
Articolo in rivista - Articolo scientifico
Scientifica
Engineering (miscellaneous); Physics and Astronomy (miscellaneous)
English
Azzolini, O., Barrera, M., Beeman, J., Bellini, F., Beretta, M., Biassoni, M., et al. (2018). Search of the neutrino-less double beta decay of 82 Se into the excited states of 82 Kr with CUPID-0. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS, 78(11) [10.1140/epjc/s10052-018-6340-9].
Azzolini, O; Barrera, M; Beeman, J; Bellini, F; Beretta, M; Biassoni, M; Bossio, E; Brofferio, C; Bucci, C; Canonica, L; Capelli, S; Cardani, L; Carniti, P; Casali, N; Cassina, L; Clemenza, M; Cremonesi, O; Cruciani, A; D’Addabbo, A; Dafinei, I; Domizio, S; Ferroni, F; Gironi, L; Giuliani, A; Gorla, P; Gotti, C; Keppel, G; Martinez, M; Morganti, S; Nagorny, S; Nastasi, M; Nisi, S; Nones, C; Orlandi, D; Pagnanini, L; Pallavicini, M; Palmieri, V; Pattavina, L; Pavan, M; Pessina, G; Pettinacci, V; Pirro, S; Pozzi, S; Previtali, E; Puiu, A; Rusconi, C; Schäffner, K; Tomei, C; Vignati, M; Zolotarova, A
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