@misc{10481/107829,
year = {2025},
month = {10},
url = {https://hdl.handle.net/10481/107829},
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 3σ evidence potential for WIMP-nucleon cross
sections as low as 3×10−49 cm2 (at 40 GeV/c2 WIMP mass).
The observatory will also have leading sensitivity to a wide
range of alternative dark matter models. It is projected to
have a 3σ observation potential of neutrinoless double beta
decay of 136Xe at a half-life of up to 5.7 × 1027 years. Additionally, it is sensitive to astrophysical neutrinos from the sun
and galactic supernovae.},
organization = {European Research Council – ERC (Xenoscope 742789, LowRad 101055063)},
organization = {European Union – Horizon 2020 (ULTIMATE 724320, EUSTRONG 101020842, Marie Skłodowska-Curie 860881-HIDDeN)},
organization = {MCIN/AEI/10.13039/501100011033 (PID2020-118758GB-I00, CNS2022-135716, CEX2019-000918-M “Unit of Excellence María de Maeztu 2020–2023”)},
organization = {European Union – NextGenerationEU / Italian National Recovery and Resilience Plan (PE1 “Future Artificial Intelligence Research”, Fondazione ICSC CN00000013, Spoke 3 “Astrophysics and Cosmos Observations”)},
publisher = {Springer},
title = {The XLZD Design Book: towards the next-generation liquid xenon observatory for dark matter and neutrino physics},
doi = {10.1140/epjc/s10052-025-14810-w},
author = {Aalbers, J. and XLZD Collaboration and Sánchez Lucas, Patricia},
}