Erlangen 2026 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 16: Search for Dark Matter I

T 16.1: Vortrag

Montag, 16. März 2026, 16:15–16:30, AM 00.014

XLZD: a next-generation multi-purpose liquid xenon observatory. — •Daniel Wenz for the XLZD collaboration — University of Münster

Owing to their excellent detection efficiency, scalability, and ultra-low background levels, dual-phase time projection chambers (TPCs) employing multi-tonne liquid xenon (LXe) targets provide a powerful tool for the discovery and study of a broad range of rare, low-energy phenomena. Key science channels include the search for dark matter, measurements of solar neutrinos and their properties, and searches for rare processes such as the neutrinoless double beta decay of Xe-136. In addition, LXe TPCs enable flavor-independent measurements of low-energy neutrino fluxes from supernovae, contributing to multi-messenger astronomy.

The proposed XLZD experiment is a next-generation, multi-purpose liquid xenon observatory that builds upon the technologies developed by the currently world-leading experiments XENONnT and LZ, as well as the R&D program of DARWIN. The nominal detector design foresees a 60-tonne LXe target mass, with a potential upgrade path to approximately 80 tonnes. In this talk, we present an overview of the XLZD concept and its projected sensitivities across the different science channels.

The author of this talk is supported by BMBF through the project numbers 05A23PM1 and the EU through the ERC AdG LowRad (101055063).

Keywords: Liquid Xenon; Time projection chambers; Weakly interacting massive particles; Solar neutrinos; Neutrinoless double beta decay