| Literature DB >> 33416389 |
M Agostini1,2, G R Araujo3, A M Bakalyarov4, M Balata5, I Barabanov6, L Baudis3, C Bauer7, E Bellotti8,9, S Belogurov6,10, A Bettini11,12, L Bezrukov6, V Biancacci11,12, D Borowicz13, E Bossio2, V Bothe7, V Brudanin13, R Brugnera11,12, A Caldwell14, C Cattadori9, A Chernogorov10,4, T Comellato2, V D'Andrea15, E V Demidova10, N Di Marco5, E Doroshkevich6, F Fischer14, M Fomina13, A Gangapshev7,6, A Garfagnini11,12, C Gooch14, P Grabmayr16, V Gurentsov6, K Gusev13,4,2, J Hakenmüller7, S Hemmer12, R Hiller3, W Hofmann7, J Huang3, M Hult17, L V Inzhechik6, J Janicskó Csáthy2, J Jochum16, M Junker5, V Kazalov6, Y Kermaïdic7, H Khushbakht16, T Kihm7, I V Kirpichnikov10, A Klimenko13,7, R Kneißl14, K T Knöpfle7, O Kochetov13, V N Kornoukhov6, P Krause2, V V Kuzminov6, M Laubenstein5, A Lazzaro2, M Lindner7, I Lippi12, A Lubashevskiy13, B Lubsandorzhiev6, G Lutter17, C Macolino5, B Majorovits14, W Maneschg7, L Manzanillas14, M Miloradovic3, R Mingazheva3, M Misiaszek18, P Moseev6, Y Müller3, I Nemchenok13, K Panas18, L Pandola19, K Pelczar17, L Pertoldi11,12, P Piseri20, A Pullia20, C Ransom3, L Rauscher16, S Riboldi20, N Rumyantseva13,4, C Sada11,12, F Salamida15, S Schönert2, J Schreiner7, M Schütt7, A-K Schütz16, O Schulz14, M Schwarz2, B Schwingenheuer7, O Selivanenko6, E Shevchik13, M Shirchenko13, L Shtembari14, H Simgen7, A Smolnikov13,7, D Stukov4, A A Vasenko10, A Veresnikova6, C Vignoli5, K von Sturm11,12, T Wester21, C Wiesinger2, M Wojcik18, E Yanovich6, B Zatschler21, I Zhitnikov13, S V Zhukov4, D Zinatulina13, A Zschocke16, A J Zsigmond14, K Zuber21, G Zuzel18.
Abstract
The GERmanium Detector Array (GERDA) experiment searched for the lepton-number-violating neutrinoless double-β (0νββ) decay of ^{76}Ge, whose discovery would have far-reaching implications in cosmology and particle physics. By operating bare germanium diodes, enriched in ^{76}Ge, in an active liquid argon shield, GERDA achieved an unprecedently low background index of 5.2×10^{-4} counts/(keV kg yr) in the signal region and met the design goal to collect an exposure of 100 kg yr in a background-free regime. When combined with the result of Phase I, no signal is observed after 127.2 kg yr of total exposure. A limit on the half-life of 0νββ decay in ^{76}Ge is set at T_{1/2}>1.8×10^{26} yr at 90% C.L., which coincides with the sensitivity assuming no signal.Entities:
Year: 2020 PMID： 33416389 DOI： 10.1103/PhysRevLett.125.252502
Source DB: PubMed Journal: Phys Rev Lett ISSN： 0031-9007 Impact factor: 9.161