Signal yields, energy resolution, and recombination fluctuations in liquid xenon

Abstract

This work presents an analysis of monoenergetic electronic recoil peaks in the dark-matter-search and calibration data from the first underground science run of the Large Underground Xenon (LUX) detector. Liquid xenon charge and light yields for electronic recoil energies between 5.2 and 661.7 keV are measured, as well as the energy resolution for the LUX detector at those same energies. Additionally, there is an interpretation of existing measurements and descriptions of electron-ion recombination fluctuations in liquid xenon as limiting cases of a more general liquid xenon re- combination fluctuation model. Measurements of the standard deviation of these fluctuations at monoenergetic electronic recoil peaks exhibit a linear dependence on the number of ions for energy deposits up to 661.7 keV, consistent with previous LUX measurements between 2-16 keV with ${}^3$H. We highlight similarities in liquid xenon recombination for electronic and nuclear recoils with a comparison of recombination fluctuations measured with low-energy calibration data.

11 pages, 12 figures, 3 tables

References in corpus (3)

• The Large Underground Xenon (LUX) Experiment
• Observation of Anti-correlation between Scintillation and Ionization for MeV Gamma-Rays in Liquid Xenon
• Low-energy (0.7-74 keV) nuclear recoil calibration of the LUX dark matter experiment using D-D neutron scattering kinematics

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• A Review of Basic Energy Reconstruction Techniques in Liquid Xenon and Argon Detectors for Dark Matter and Neutrino Physics Using NEST
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• Calibration of a two-phase xenon time projection chamber with a ${}^{37}$Ar source
• ${}^{83\text{m}}$Kr calibration of the 2013 LUX dark matter search
• The XLZD Design Book: Towards the Next-Generation Liquid Xenon Observatory for Dark Matter and Neutrino Physics
• Signal Response Model in PandaX-4T
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• Improved Measurements of the \b{eta}-Decay Response of Liquid Xenon with the LUX Detector
• Neutrino Backgrounds in Future Liquid Noble Element Dark Matter Direct Detection Experiments
• Improved Modeling of $\beta$ Electronic Recoils in Liquid Xenon Using LUX Calibration Data
• Exploring light dark matter with the Migdal effect in hydrogen-doped liquid xenon
• Isospin-violating dark matter at liquid noble detectors: new constraints, future projections, and an exploration of target complementarity
• Light yield and field dependence measurement in PandaX-II dual-phase xenon detector