We report on the results obtained with the global CUPID-0 background model, which combines the data collected in the two measurement campaigns for a total exposure of 8.82 kg × yr of 82 Se . We identify with improved precision the background sources within the 3 MeV energy region, where neutrinoless double β decay of 82 Se and 100 Mo is expected, making more solid the foundations for the background budget of the next-generation CUPID experiment. Relying on the excellent data reconstruction, we measure the two-neutrino double β -decay half-life of 82 Se with unprecedented accuracy: T 2 ν 1 / 2 = [ 8.69 ± 0.05 ( stat ) + 0.09 − 0.06 ( syst ) ] × 10 19 yr .
Measurement of the 2νββ Decay Half-Life of Se82 with the Global CUPID-0 Background Model
Pagnanini, L.
Supervision
;
2023-01-01
Abstract
We report on the results obtained with the global CUPID-0 background model, which combines the data collected in the two measurement campaigns for a total exposure of 8.82 kg × yr of 82 Se . We identify with improved precision the background sources within the 3 MeV energy region, where neutrinoless double β decay of 82 Se and 100 Mo is expected, making more solid the foundations for the background budget of the next-generation CUPID experiment. Relying on the excellent data reconstruction, we measure the two-neutrino double β -decay half-life of 82 Se with unprecedented accuracy: T 2 ν 1 / 2 = [ 8.69 ± 0.05 ( stat ) + 0.09 − 0.06 ( syst ) ] × 10 19 yr .| File | Dimensione | Formato | |
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