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

2015

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, A di;
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, A-K;
Schulz, O;
Schwingenheuer, B;
Selivanenko, O;
Shirchenko, M;
Simgen, H;
Smolnikov, A;
Stanco, L;
Stepaniuk, M;
Ur, CA;
Vanhoefer, L;
Vasenko, AA;
Veresnikova, A;
von Sturm, K;
Wagner, V;
Walter, M;
Wegmann, A;
Wester, T;
Wilsenach, H;
Wojcik, M;
Yanovich, E;
Zavarise, P;
Zhitnikov, I;
Zhukov, SV;
Zinatulina, D;
Zuber, K;
Zuzel, G
et al.

Published Web Location

https://doi.org/10.1140/epjc/s10052-015-3409-6

Abstract

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 $$0 u \beta \beta $$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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Lawrence Berkeley National Laboratory

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

Published Web Location