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arXiv · 1502.04392

Improvement of the Energy Resolution via an Optimized Digital Signal Processing in GERDA Phase I

M. Agostini·M. Allardt·A. M. Bakalyarov·M. Balata·I. Barabanov·N. Barros·L. Baudis·C. Bauer·N. Becerici-Schmidt·E. Bellotti·S. Belogurov·S. T. Belyaev·G. Benato·A. Bettini·L. Bezrukov·T. Bode·D. Borowicz·V. Brudanin·R. Brugnera·D. Budjáš·A. Caldwell·C. Cattadori·A. Chernogorov·V. D'Andrea·E. V. Demidova·A. di Vacri·A. Domula·E. Doroshkevich·V. Egorov·R. Falkenstein·O. Fedorova·K. Freund·N. Frodyma·A. Gangapshev·A. Garfagnini·P. Grabmayr·V. Gurentsov·K. Gusev·A. Hegai·M. Heisel·S. Hemmer·G. Heusser·W. Hofmann·M. Hult·L. V. Inzhechik·J. Janicskó Csáthy·J. Jochum·M. Junker·V. Kazalov·T. Kihm·I. V. Kirpichnikov·A. Kirsch·A. Klimenko·K. T. Knöpfle·O. Kochetov·V. N. Kornoukhov·V. V. Kuzminov·M. Laubenstein·A. Lazzaro·V. I. Lebedev·B. Lehnert·H. Y. Liao·M. Lindner·I. Lippi·A. Lubashevskiy·B. Lubsandorzhiev·G. Lutter·C. Macolino·B. Majorovits·W. Maneschg·E. Medinaceli·M. Misiaszek·P. Moseev·I. Nemchenok·D. Palioselitis·K. Panas·L. Pandola·K. Pelczar·A. Pullia·S. Riboldi·N. Rumyantseva·C. Sada·M. Salathe·C. Schmitt·B. Schneider·S. Schönert·J. Schreiner·A. -K. Schütz·O. Schulz·B. Schwingenheuer·O. Selivanenko·M. Shirchenko·H. Simgen·A. Smolnikov·L. Stanco·M. Stepaniuk·C. A. Ur·L. Vanhoefer·A. A. Vasenko·A. Veresnikova
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Abstract

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

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M. Agostini, M. Allardt, A. M. Bakalyarov, M. Balata, I. Barabanov, N. Barros, L. Baudis, C. Bauer, N. Becerici-Schmidt, E. Bellotti, S. Belogurov, S. T. Belyaev, G. Benato, A. Bettini, L. Bezrukov, T. Bode, D. Borowicz, V. Brudanin, R. Brugnera, D. Budjáš, A. Caldwell, C. Cattadori, A. Chernogorov, V. D'Andrea, E. V. Demidova, A. di Vacri, A. Domula, E. Doroshkevich, V. Egorov, R. Falkenstein, O. Fedorova, K. Freund, N. Frodyma, A. Gangapshev, A. Garfagnini, P. Grabmayr, V. Gurentsov, K. Gusev, A. Hegai, M. Heisel, S. Hemmer, G. Heusser, W. Hofmann, M. Hult, L. V. Inzhechik, J. Janicskó Csáthy, J. Jochum, M. Junker, V. Kazalov, T. Kihm, I. V. Kirpichnikov, A. Kirsch, A. Klimenko, K. T. Knöpfle, O. Kochetov, V. N. Kornoukhov, V. V. Kuzminov, M. Laubenstein, A. Lazzaro, V. I. Lebedev, B. Lehnert, H. Y. Liao, M. Lindner, I. Lippi, A. Lubashevskiy, B. Lubsandorzhiev, G. Lutter, C. Macolino, B. Majorovits, W. Maneschg, E. Medinaceli, M. Misiaszek, P. Moseev, I. Nemchenok, D. Palioselitis, K. Panas, L. Pandola, K. Pelczar, A. Pullia, S. Riboldi, N. Rumyantseva, C. Sada, M. Salathe, C. Schmitt, B. Schneider, S. Schönert, J. Schreiner, A. -K. Schütz, O. Schulz, B. Schwingenheuer, O. Selivanenko, M. Shirchenko, H. Simgen, A. Smolnikov, L. Stanco, M. Stepaniuk, C. A. Ur, L. Vanhoefer, A. A. Vasenko, A. Veresnikova. 2015-02-15. Improvement of the Energy Resolution via an Optimized Digital Signal Processing in GERDA Phase I. https://arxiv.org/abs/1502.04392

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