Low-Energy (<10 keV) Electron Ionization and Recombination Model for a Liquid Argon Detector

Detailed understanding of the ionization process in noble liquid detectors is important for their use in applications such as the search for dark matter and coherent elastic neutrino-nucleus scattering. The response of noble liquid detectors to low-energy ionization events is poorly understood at th...

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Published inarXiv.org
Main Authors Foxe, Michael, Hagmann, Chris, Jovanovic, Igor, Bernstein, Adam, Kazkaz, Kareem, Mozin, Vladimir, Pereverzev, Sergey, Sangiorgio, Samuele, Sorensen, Peter
Format Paper Journal Article
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 14.03.2014
Subjects
Argon
Beta decay
Beta rays
Coherent scattering
Computer simulation
Dark matter
Dependence
Detectors
Elastic scattering
Ionization
Ions
Neutrinos
Physics - Atomic Physics
Physics - Instrumentation and Detectors
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Summary:Detailed understanding of the ionization process in noble liquid detectors is important for their use in applications such as the search for dark matter and coherent elastic neutrino-nucleus scattering. The response of noble liquid detectors to low-energy ionization events is poorly understood at this time. We describe a new simulation tool which predicts the ionization yield from electronic energy deposits (E < 10keV) in liquid Ar, including the dependence of the yield on the applied electric drift field. The ionization signal produced in a liquid argon detector from \(^{37}\)Ar beta decay and \(^{55}\)Fe X-rays has been calculated using the new model.
ISSN:2331-8422
DOI:10.48550/arxiv.1403.3719