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Limit on the radiative neutrinoless double electron capture of 36 Ar from GERDA Phase I

  • Author(s): Agostini, M
  • Allardt, M
  • Bakalyarov, AM
  • Balata, M
  • Barabanov, I
  • Barros, N
  • Baudis, L
  • Bauer, C
  • Bellotti, E
  • Belogurov, S
  • Belyaev, ST
  • Benato, G
  • Bettini, A
  • Bezrukov, L
  • Bode, T
  • Borowicz, D
  • Brudanin, V
  • Brugnera, R
  • Caldwell, A
  • Cattadori, C
  • Chernogorov, A
  • D’Andrea, V
  • Demidova, EV
  • di Vacri, A
  • Domula, A
  • Doroshkevich, E
  • Egorov, V
  • Falkenstein, R
  • Fedorova, O
  • Freund, K
  • Frodyma, N
  • Gangapshev, A
  • Garfagnini, A
  • Gooch, C
  • Grabmayr, P
  • Gurentsov, V
  • Gusev, K
  • Hakenmüller, J
  • Hegai, A
  • Heisel, M
  • Hemmer, S
  • Heusser, G
  • Hofmann, W
  • Hult, M
  • Inzhechik, LV
  • Csáthy, JJ
  • Jochum, J
  • Junker, M
  • Kazalov, V
  • Kihm, T
  • Kirpichnikov, IV
  • Kirsch, A
  • Kish, A
  • Klimenko, A
  • Kneißl, R
  • Knöpfle, KT
  • Kochetov, O
  • Kornoukhov, VN
  • Kuzminov, VV
  • Laubenstein, M
  • Lazzaro, A
  • Lebedev, VI
  • Lehnert, B
  • Liao, HY
  • Lindner, M
  • Lippi, I
  • Lubashevskiy, A
  • Lubsandorzhiev, B
  • Lutter, G
  • Macolino, C
  • Majorovits, B
  • Maneschg, W
  • Medinaceli, E
  • Miloradovic, M
  • Mingazheva, R
  • Misiaszek, M
  • Moseev, P
  • Nemchenok, I
  • Palioselitis, D
  • Panas, K
  • Pandola, L
  • Pelczar, K
  • Pullia, A
  • Riboldi, S
  • Rumyantseva, N
  • Sada, C
  • Salamida, F
  • Salathe, M
  • Schmitt, C
  • Schneider, B
  • Schönert, S
  • Schreiner, J
  • Schütz, AK
  • Schulz, O
  • Schwingenheuer, B
  • Selivanenko, O
  • Shirchenko, M
  • Simgen, H
  • Smolnikov, A
  • Stanco, L
  • et al.
Abstract

© 2016, The Author(s). Neutrinoless double electron capture is a process that, if detected, would give evidence of lepton number violation and the Majorana nature of neutrinos. A search for neutrinoless double electron capture of 36Ar has been performed with germanium detectors installed in liquid argon using data from Phase I of the GERmanium Detector Array (Gerda) experiment at the Gran Sasso Laboratory of INFN, Italy. No signal was observed and an experimental lower limit on the half-life of the radiative neutrinoless double electron capture of 36Ar was established: T1 / 2> 3.6 × 1021 years at 90% CI.

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