A search for new physics in low-energy electron recoils from the first LZ exposure

Abstract

The LUX-ZEPLIN (LZ) experiment is a dark matter detector centered on a dual-phase xenon time projection chamber. We report searches for new physics appearing through few-keV-scale electron recoils, using the experiment's first exposure of 60 live days and a fiducial mass of 5.5t. The data are found to be consistent with a background-only hypothesis, and limits are set on models for new physics including solar axion electron coupling, solar neutrino magnetic moment and millicharge, and electron couplings to galactic axion-like particles and hidden photons. Similar limits are set on weakly interacting massive particle (WIMP) dark matter producing signals through ionized atomic states from the Migdal effect.

13 pages, 10 figures. See https://tinyurl.com/LZDataReleaseRun1ER for a data release related to this paper

References in corpus (31)

• Results from a search for dark matter in the complete LUX exposure
• First Dark Matter Search Results from the LUX-ZEPLIN (LZ) Experiment
• Dark Matter Search Results from the PandaX-4T Commissioning Run
• A new Generation of Standard Solar Models
• Bosonic super-WIMPs as keV-scale dark matter
• Search for New Physics in Electronic Recoil Data from XENONnT
• Searching for low-mass dark matter particles with a massive Ge bolometer operated above-ground
• Low-Mass Dark Matter Search with CDMSlite
• The LUX-ZEPLIN (LZ) Experiment
• Limiting neutrino magnetic moments with Borexino Phase-II solar neutrino data
• First results from the NEWS-G direct dark matter search experiment at the LSM
• Probing sub-GeV Dark Matter with conventional detectors
• Muon simulation codes MUSIC and MUSUN for underground physics
• Model Independent Bounds on Magnetic Moments of Majorana Neutrinos
• Limits on Axion Couplings from the first 80-day data of PandaX-II Experiment
• Search for dark matter particle interactions with electron final states with DarkSide-50
• Constraining the neutrino magnetic dipole moment from white dwarf pulsations
• A Review of Basic Energy Reconstruction Techniques in Liquid Xenon and Argon Detectors for Dark Matter and Neutrino Physics Using NEST
• Ultra-Low Energy Calibration of LUX Detector using ${}^{127}$Xe Electron Capture
• New constraint on neutrino magnetic moment and neutrino millicharge from LUX-ZEPLIN dark matter search results
• Background Determination for the LUX-ZEPLIN (LZ) Dark Matter Experiment
• Calibration of a two-phase xenon time projection chamber with a ${}^{37}$Ar source
• Precise predictions and new insights for atomic ionisation from the Migdal effect
• The first search for bosonic super-WIMPs with masses up to 1 MeV/c${}^2$ with GERDA
• The MIGDAL experiment: Measuring a rare atomic process to aid the search for dark matter
• Calibration of the liquid argon ionization response to low energy electronic and nuclear recoils with DarkSide-50
• Projected sensitivities of the LUX-ZEPLIN (LZ) experiment to new physics via low-energy electron recoils
• Ab initio structure factors for spin-dependent dark matter direct detection
• Search for exotic neutrino-electron interactions using solar neutrinos in XMASS-I
• Probing spin-dependent dark matter interactions with ${}^6$Li
• Cosmogenic production of ${}^{37}$Ar in the context of the LUX-ZEPLIN experiment

Cited by in corpus (32)

• Search for Dark-Matter-Nucleon Interactions with a Dark Mediator in PandaX-4T
• Resonant or asymmetric: The status of sub-GeV dark matter
• Search for Light Dark Matter in Low-Energy Ionization Signals from XENONnT
• Neutrino Electromagnetic Properties
• Dark Matter Candidates and Searches
• DarkSide-20k sensitivity to light dark matter particles
• XENONnT and LUX-ZEPLIN constraints on DSNB-boosted dark matter
• Exploring New Physics with PandaX-4T Low Energy Electronic Recoil Data
• Search for MeV-Scale Axionlike Particles and Dark Photons with PandaX-4T
• Revisiting general dark matter-bound-electron interactions
• Solar chameleons: Novel channels
• Constraining low scale dark hypercharge symmetry at spallation, reactor and Dark Matter direct detection experiments
• New constraints on cosmic ray-boosted dark matter from the LUX-ZEPLIN experiment
• The Design, Implementation, and Performance of the LZ Calibration Systems
• Probing light mediators with recent PandaX-4T low energy electron recoil data
• Light dark-matter window constrained by \boldmath$K^{+}\to {\pi }^{+}$$+$$/E$
• First measurement of Gallium Arsenide as a low-temperature calorimeter
• Probing Light Inelastic Dark Matter from Direct Detection
• Modeling Athermal Phonons in Novel Materials using the G4CMP Simulation Toolkit
• Insights into Dark Matter Direct Detection Experiments: Decision Trees versus Deep Learning
• Transforming a rare event search into a not-so-rare event search in real-time with deep learning-based object detection
• Constraining neutrino electromagnetic properties with recent low-energy electron recoil data at dark matter direct detection experiments
• Light Dark Matter Search with 7.8 Tonne-Year of Ionization-Only Data in XENONnT
• Investigating sub-MeV dark matter annihilation to neutrinos using direct detection experiments
• HydroX, a light dark matter search with hydrogen-doped liquid xenon time projection chambers
• Hyper Stealth Dark Matter and Long-Lived Particles
• INTEGRAL, eROSITA and Voyager Constraints on Light Bosonic Dark Matter: ALPs, Dark Photons, Scalars, $B-L$ and $L_i-L_j$ Vectors
• Constraints on millicharged particles from nuclear gamma-decays
• Primordial black holes as cosmic accelerators of light dark matter: Novel direct detection constraints
• Prospect of the NUCLEUS Experiment at Chooz for Coherent Elastic Neutrino-Nucleus Scattering and New Physics Searches
• Solar Reflected Dark Matter under the Influence of a Dark Magnetic Field
• Search for New Physics via Low-Energy Electron Recoils with a 4.2 Tonne\times Year Exposure from the LZ Experiment