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

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.

References in corpus (10)

• First Dark Matter Results from the XENON100 Experiment
• NEST: A Comprehensive Model for Scintillation Yield in Liquid Xenon
• First limits on WIMP nuclear recoil signals in ZEPLIN-II: a two phase xenon detector for dark matter detection
• Design and Performance of the XENON10 Dark Matter Experiment
• WARP liquid argon detector for dark matter survey
• Nuclear recoil energy scale in liquid xenon with application to the direct detection of dark matter
• First measurement of the ionization yield of nuclear recoils in liquid argon
• First demonstration of a sub-keV electron recoil energy threshold in a liquid argon ionization chamber
• Operation of a 1-Liter-Volume Gaseous Argon Scintillation Counter
• The Argon Dark Matter Experiment (ArDM)

Cited by in corpus (5)

• A Global Analysis of Light and Charge Yields in Liquid Xenon
• Electron extraction efficiency study for dual-phase xenon dark matter experiments
• A multi-term solution of the space-time Boltzmann equation for electrons in gaseous and liquid Argon
• A Comprehensive Study of Low-Energy Response for Xenon-Based Dark Matter Experiments
• Electron recombination in low-energy nuclear recoils tracks in liquid argon