The XLZD Design Book: Towards the Next-Generation Liquid Xenon Observatory for Dark Matter and Neutrino Physics

Abstract

This report describes the experimental strategy and technologies for XLZD, the next-generation xenon observatory sensitive to dark matter and neutrino physics. In the baseline design, the detector will have an active liquid xenon target of 60 tonnes, which could be increased to 80 tonnes if the market conditions for xenon are favorable. It is based on the mature liquid xenon time projection chamber technology used in current-generation experiments, LZ and XENONnT. The report discusses the baseline design and opportunities for further optimization of the individual detector components. The experiment envisaged here has the capability to explore parameter space for Weakly Interacting Massive Particle (WIMP) dark matter down to the neutrino fog, with a 3$\sigma$ evidence potential for WIMP-nucleon cross sections as low as $3\times 10^{-49}\mathrm{c}{\mathrm{m}}^2$ (at 40 GeV/c${}^2$ WIMP mass). The observatory will also have leading sensitivity to a wide range of alternative dark matter models. It is projected to have a 3$\sigma$ observation potential of neutrinoless double beta decay of ${}^{136}$Xe at a half-life of up to $5.7\times 10^{27}$ years. Additionally, it is sensitive to astrophysical neutrinos from the sun and galactic supernovae.

33 pages, 14 figures

References in corpus (64)

• A direct empirical proof of the existence of dark matter
• Results from a search for dark matter in the complete LUX exposure
• Observation of Coherent Elastic Neutrino-Nucleus Scattering
• First Dark Matter Search Results from the LUX-ZEPLIN (LZ) Experiment
• Dark Matter Search Results from the PandaX-4T Commissioning Run
• First Dark Matter Search with Nuclear Recoils from the XENONnT Experiment
• DARWIN: towards the ultimate dark matter detector
• Bosonic super-WIMPs as keV-scale dark matter
• The Large Underground Xenon (LUX) Experiment
• Search for New Physics in Electronic Recoil Data from XENONnT
• Toward the discovery of matter creation with neutrinoless double-beta decay
• Liquid noble gas detectors for low energy particle physics
• Probing New Physics Models of Neutrinoless Double Beta Decay with SuperNEMO
• The LUX-ZEPLIN (LZ) Experiment
• Fog on the horizon: a new definition of the neutrino floor for direct dark matter searches
• Results from the First Science Run of the ZEPLIN-III Dark Matter Search Experiment
• Dark Matter Search Results from 4.2 Tonne-Years of Exposure of the LUX-ZEPLIN (LZ) Experiment
• NEXO: Neutrinoless double beta decay search beyond $10^{28}$ year half-life sensitivity
• Simultaneous Measurement of Ionization and Scintillation from Nuclear Recoils in Liquid Xenon as Target for a Dark Matter Experiment
• A Next-Generation Liquid Xenon Observatory for Dark Matter and Neutrino Physics
• First limits on WIMP nuclear recoil signals in ZEPLIN-II: a two phase xenon detector for dark matter detection
• Systematic study of trace radioactive impurities in candidate construction materials for EXO-200
• XENON100 Dark Matter Results from a Combination of 477 Live Days
• The SNO+ Experiment
• Dark Matter Search Results from 1.54 Tonne$\cdot$Year Exposure of PandaX-4T
• Emission of Single and Few Electrons in XENON1T and Limits on Light Dark Matter
• Complementarity of Dark Matter Direct Detection Targets
• First dark matter search results from the PandaX-I experiment
• SNEWS 2.0: A Next-Generation SuperNova Early Warning System for Multi-messenger Astronomy
• The XENONnT Dark Matter Experiment
• PandaX-xT: a Multi-ten-tonne Liquid Xenon Observatory at the China Jinping Underground Laboratory
• Performance of the Hamamatsu R11410 Photomultiplier Tube in cryogenic Xenon Environments
• Qualification Tests of the R11410-21 Photomultiplier Tubes for the XENON1T Detector
• Signal yields, energy resolution, and recombination fluctuations in liquid xenon
• Background Determination for the LUX-ZEPLIN (LZ) Dark Matter Experiment
• Low Background Gamma Spectroscopy at the Boulby Underground Laboratory
• Calibration of a two-phase xenon time projection chamber with a ${}^{37}$Ar source
• Design, construction and commissioning of a high-flow radon removal system for XENONnT
• Liquid-phase purification for multi-tonne xenon detectors
• Improved quality tests of R11410-21 photomultiplier tubes for the XENONnT experiment
• EOS: a demonstrator of hybrid optical detector technology
• First Constraints on WIMP-Nucleon Effective Field Theory Couplings in an Extended Energy Region From LUX-ZEPLIN
• A Review of NEST Models for Liquid Xenon and Exhaustive Comparison to Other Approaches
• The CMSSM Survives Planck, the LHC, LUX-ZEPLIN, Fermi-LAT, H.E.S.S. and IceCube
• Searching for Heavy Dark Matter near the Planck Mass with XENON1T
• The Triggerless Data Acquisition System of the XENONnT Experiment
• Solar neutrinos with CE$\nu$NS and flavor-dependent radiative corrections
• $pp$ Solar Neutrinos at DARWIN
• GeMSE: a Low-Background Facility for Gamma-Spectrometry at Moderate Rock Overburden
• Application and modeling of an online distillation method to reduce krypton and argon in XENON1T
• The upgraded low-background germanium counting facility Gator for high-sensitivity $\gamma$-ray spectrometry
• Neutrinoless Double Beta Decay Sensitivity of the XLZD Rare Event Observatory
• Design and performance of the field cage for the XENONnT experiment
• Design and construction of Xenoscope -- a full-scale vertical demonstrator for the DARWIN observatory
• Prospects of charge signal analyses in liquid xenon TPCs with proportional scintillation in the liquid phase
• PANCAKE: a large-diameter cryogenic test platform with a flat floor for next generation multi-tonne liquid xenon detectors
• GPU-based optical simulation of the DARWIN detector
• Purification Efficiency and Radon Emanation of Gas Purifiers used with Pure and Binary Gas Mixtures for Gaseous Dark Matter Detectors
• The Design, Implementation, and Performance of the LZ Calibration Systems
• Reduction of ${}^{222}$Rn-induced Backgrounds in a Hermetic Dual-Phase Xenon Time Projection Chamber
• ATLAS Run 2 searches for electroweak production of supersymmetric particles interpreted within the pMSSM
• Characterization of a ${}^{220}$Rn source for low-energy electronic recoil calibration of the XENONnT detector
• Production and characterization of a ${}^{222}$Rn-emanating stainless steel source
• Design Challenges for a Future Liquid Xenon Observatory

Cited by in corpus (9)

• Testing the dark side of neutrino oscillations with the solar neutrino fog at Dark Matter experiments
• Light Dark Matter Search with 7.8 Tonne-Year of Ionization-Only Data in XENONnT
• Scrutinizing Fermionic Dark Matter in Scotogenic Model with Low Reheating Temperature
• GRANITE: High-Resolution Imaging and Electrical Qualification of Large-Area TPC Electrodes
• Development & Characterization of Electrodes for large-scale Xenon Time Projection Chambers
• GRANITE: Mechanical Characterization and Optical Inspection of Large-Area TPC Electrodes
• Oscillation-Independent Probes of Neutrino Non-Standard Interactions from Supernovae
• Search for New Physics via Low-Energy Electron Recoils with a 4.2 Tonne\times Year Exposure from the LZ Experiment
• Photonic Freeze-In