Regular Article – Experimental Physics
Charge-carrier collective motion in germanium detectors for -decay searches
Physik Department E15, Technische Universität München, James-Franck-Straße 1, 85748, Garching, Germany
2 Department of Physics and Astronomy, University College London, Gower Street, WC1E 6BT, London, UK
Accepted: 17 January 2021
Published online: 25 January 2021
The time analysis of the signal induced by the drift of charge carriers in high purity germanium detectors provides information on the event topology. Millions of charge carriers are produced in a typical event. Their initial distribution, stochastic diffusion and Coulomb self-repulsion affect the time structure of the signal. We present a comprehensive study of these effects and evaluate their impact on the event discrimination capabilities for the three geometries which will be used in the Legend experiment for neutrinoless double-beta decay.
© The Author(s) 2021
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