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arXiv · 1403.3719

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

Michael Foxe·Chris Hagmann·Igor Jovanovic·Adam Bernstein·Kareem Kazkaz·Vladimir Mozin·Sergey Pereverzev·Samuele Sangiorgio·Peter Sorensen
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Abstract

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.

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Michael Foxe, Chris Hagmann, Igor Jovanovic, Adam Bernstein, Kareem Kazkaz, Vladimir Mozin, Sergey Pereverzev, Samuele Sangiorgio, Peter Sorensen. 2014-03-14. Low-Energy (<10 keV) Electron Ionization and Recombination Model for a Liquid Argon Detector. https://doi.org/10.1016/j.nima.2014.10.055

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