Details

Autor(en) / Beteiligte

• Agostini, M
• Araujo, G R
• Bakalyarov, A M
• Balata, M
• Barabanov, I
• Baudis, L
• Bauer, C
• Bellotti, E
• Belogurov, S
• Bettini, A
• Bezrukov, L
• Biancacci, V
• Borowicz, D
• Bossio, E
• Bothe, V
• Brudanin, V
• Brugnera, R
• Caldwell, A
• Cattadori, C
• Chernogorov, A
• Comellato, T
• D'Andrea, V
• Demidova, E V
• Di Marco, N
• Doroshkevich, E
• Fischer, F
• Fomina, M
• Gangapshev, A
• Garfagnini, A
• Gooch, C
• Grabmayr, P
• Gurentsov, V
• Gusev, K
• Hakenmüller, J
• Hemmer, S
• Hiller, R
• Hofmann, W
• Huang, J
• Hult, M
• Inzhechik, L V
• Janicskó Csáthy, J
• Jochum, J
• Junker, M
• Kazalov, V
• Kermaïdic, Y
• Khushbakht, H
• Kihm, T
• Kirpichnikov, I V
• Klimenko, A
• Kneißl, R
• Knöpfle, K T
• Kochetov, O
• Kornoukhov, V N
• Krause, P
• Kuzminov, V V
• Laubenstein, M
• Lazzaro, A
• Lindner, M
• Lippi, I
• Lubashevskiy, A
• Lubsandorzhiev, B
• Lutter, G
• Macolino, C
• Majorovits, B
• Maneschg, W
• Manzanillas, L
• Miloradovic, M
• Mingazheva, R
• Misiaszek, M
• Moseev, P
• Müller, Y
• Nemchenok, I
• Panas, K
• Pandola, L
• Pelczar, K
• Pertoldi, L
• Piseri, P
• Pullia, A
• Ransom, C
• Rauscher, L
• Riboldi, S
• Rumyantseva, N
• Sada, C
• Salamida, F
• Schönert, S
• Schreiner, J
• Schütt, M
• Schütz, A-K
• Schulz, O
• Schwarz, M
• Schwingenheuer, B
• Selivanenko, O
• Shevchik, E
• Shirchenko, M
• Shtembari, L
• Simgen, H
• Smolnikov, A
• Stukov, D
• Vasenko, A A
• Veresnikova, A

Titel

Final Results of GERDA on the Search for Neutrinoless Double-β Decay

Ist Teil von

• Physical review letters, 2020-12, Vol.125 (25), p.252502-252502, Article 252502

Ort / Verlag

United States: American Physical Society

Erscheinungsjahr

2020

Quelle

EZB Electronic Journals Library

Beschreibungen/Notizen

• 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.