TY - JOUR
T1 - The XLZD Design Book
T2 - Towards the next-generation liquid xenon observatory for dark matter and neutrino physics
AU - XLZD Collaboration
AU - Aalbers, Jelle
AU - Abe, K
AU - Adrover, M.
AU - Ahmed Maouloud, S.
AU - Akerib, D.S.
AU - Musalhi, A.K. Al
AU - Alder, F.
AU - Althueser, L.
PY - 2025/10
Y1 - 2025/10
N2 - This report describes the experimental strat-egy and technologies for XLZD, the next-generation xenonobservatory sensitive to dark matter and neutrino physics.In the baseline design, the detector will have an active liq-uid xenon target of 60 tonnes, which could be increased to80 tonnes if the market conditions for xenon are favorable. Itis based on the mature liquid xenon time projection cham-ber technology used in current-generation experiments, LZand XENONnT. The report discusses the baseline designand opportunities for further optimization of the individualdetector components. The experiment envisaged here has thecapability to explore parameter space for Weakly InteractingMassive Particle (WIMP) dark matter down to the neutrinofog, with a 3σ evidence potential for WIMP-nucleon crosssections as low as 3×10−49 cm2 (at 40 GeV/c2 WIMP mass).The observatory will also have leading sensitivity to a widerange of alternative dark matter models. It is projected tohave a 3σ observation potential of neutrinoless double betadecay of 136Xe at a half-life of up to 5.7 × 1027 years. Addi-tionally, it is sensitive to astrophysical neutrinos from the sunand galactic supernovae.
AB - This report describes the experimental strat-egy and technologies for XLZD, the next-generation xenonobservatory sensitive to dark matter and neutrino physics.In the baseline design, the detector will have an active liq-uid xenon target of 60 tonnes, which could be increased to80 tonnes if the market conditions for xenon are favorable. Itis based on the mature liquid xenon time projection cham-ber technology used in current-generation experiments, LZand XENONnT. The report discusses the baseline designand opportunities for further optimization of the individualdetector components. The experiment envisaged here has thecapability to explore parameter space for Weakly InteractingMassive Particle (WIMP) dark matter down to the neutrinofog, with a 3σ evidence potential for WIMP-nucleon crosssections as low as 3×10−49 cm2 (at 40 GeV/c2 WIMP mass).The observatory will also have leading sensitivity to a widerange of alternative dark matter models. It is projected tohave a 3σ observation potential of neutrinoless double betadecay of 136Xe at a half-life of up to 5.7 × 1027 years. Addi-tionally, it is sensitive to astrophysical neutrinos from the sunand galactic supernovae.
U2 - 10.1140/epjc/s10052-025-14810-w
DO - 10.1140/epjc/s10052-025-14810-w
M3 - Article
SN - 1434-6044
VL - 85
JO - The European Physical Journal C
JF - The European Physical Journal C
IS - 10
ER -