Details

Autor(en) / Beteiligte

• Azzolini, O.
• Beeman, J. W.
• Bellini, F.
• Beretta, M.
• Biassoni, M.
• Brofferio, C.
• Bucci, C.
• Capelli, S.
• Cardani, L.
• Carniti, P.
• Casali, N.
• Chiesa, D.
• Clemenza, M.
• Cremonesi, O.
• Cruciani, A.
• Dafinei, I.
• Domizio, S. Di
• Ferroni, F.
• Gironi, L.
• Giuliani, A.
• Gorla, P.
• Gotti, C.
• Keppel, G.
• Martinez, M.
• Nagorny, S.
• Nastasi, M.
• Nisi, S.
• Nones, C.
• Orlandi, D.
• Pagnanini, L.
• Pallavicini, M.
• 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.

Titel

Background model of the CUPID-0 experiment

Ist Teil von

• The European physical journal. C, Particles and fields, 2019-07, Vol.79 (7), p.1-16, Article 583

Ort / Verlag

Berlin/Heidelberg: Springer Berlin Heidelberg

Erscheinungsjahr

2019

Link zum Volltext

Quelle

Free E-Journal (出版社公開部分のみ）

Beschreibungen/Notizen

• CUPID-0 is the first large mass array of enriched Zn 82 Se scintillating low temperature calorimeters, operated at LNGS since 2017. During its first scientific runs, CUPID-0 collected an exposure of 9.95 kg year. Thanks to the excellent rejection of α particles, we attained the lowest background ever measured with thermal detectors in the energy region where we search for the signature of 82 Se neutrinoless double beta decay. In this work we develop a model to reconstruct the CUPID-0 background over the whole energy range of experimental data. We identify the background sources exploiting their distinctive signatures and we assess their extremely low contribution [down to ∼ 10 - 4 counts/(keV kg year)] in the region of interest for 82 Se neutrinoless double beta decay search. This result represents a crucial step towards the comprehension of the background in experiments based on scintillating calorimeters and in next generation projects such as CUPID.