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Improvement of the energy resolution via an optimized digital signal processing in GERDA Phase I

  • Author(s): GERDA Collaboration
  • Agostini, M
  • Allardt, M
  • Bakalyarov, AM
  • Balata, M
  • Barabanov, I
  • Barros, N
  • Baudis, L
  • Bauer, C
  • Becerici-Schmidt, N
  • Bellotti, E
  • Belogurov, S
  • Belyaev, ST
  • Benato, G
  • Bettini, A
  • Bezrukov, L
  • Bode, T
  • Borowicz, D
  • Brudanin, V
  • Brugnera, R
  • Budjáš, D
  • Caldwell, A
  • Cattadori, C
  • Chernogorov, A
  • D’Andrea, V
  • Demidova, EV
  • Vacri, AD
  • Domula, A
  • Doroshkevich, E
  • Egorov, V
  • Falkenstein, R
  • Fedorova, O
  • Freund, K
  • Frodyma, N
  • Gangapshev, A
  • Garfagnini, A
  • Grabmayr, P
  • Gurentsov, V
  • Gusev, K
  • Hegai, A
  • Heisel, M
  • Hemmer, S
  • Heusser, G
  • Hofmann, W
  • Hult, M
  • Inzhechik, LV
  • Janicskó Csáthy, J
  • Jochum, J
  • Junker, M
  • Kazalov, V
  • Kihm, T
  • Kirpichnikov, IV
  • Kirsch, A
  • Klimenko, A
  • 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
  • Misiaszek, M
  • Moseev, P
  • Nemchenok, I
  • Palioselitis, D
  • Panas, K
  • Pandola, L
  • Pelczar, K
  • Pullia, A
  • Riboldi, S
  • Rumyantseva, N
  • Sada, C
  • 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
  • Stepaniuk, M
  • Ur, CA
  • Vanhoefer, L
  • Vasenko, AA
  • et al.
Abstract

© 2015, The Author(s). An optimized digital shaping filter has been developed for the Gerda experiment which searches for neutrinoless double beta decay in $$^{76}$$76Ge. The Gerda Phase I energy calibration data have been reprocessed and an average improvement of 0.3 keV in energy resolution (FWHM) corresponding to 10 % at the $$Q$$Q value for $$0\nu \beta \beta $$0νββ decay in $$^{76}$$76Ge is obtained. This is possible thanks to the enhanced low-frequency noise rejection of this Zero Area Cusp (ZAC) signal shaping filter.

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