Charge-carrier collective motion in germanium detectors for \beta\beta-decay searches

Tommaso Comellato; Matteo Agostini; Stefan Schönert

doi:10.1140/epjc/s10052-021-08889-0

Charge-carrier collective motion in germanium detectors for \beta\beta-decay searches

Instrumentation and Detectors 2021-01-26 v2 High Energy Physics - Experiment

Authors: Tommaso Comellato , Matteo Agostini , Stefan Schönert

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Abstract

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.

Keywords

high purity germanium detectors charge-carrier collective motion neutrinoless double-beta decay event topology Coulomb self-repulsion stochastic diffusion LEGEND experiment

Cite

@article{arxiv.2007.12910,
  title  = {Charge-carrier collective motion in germanium detectors for \beta\beta-decay searches},
  author = {Tommaso Comellato and Matteo Agostini and Stefan Schönert},
  journal= {arXiv preprint arXiv:2007.12910},
  year   = {2021}
}

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