Erlangen 2026 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 36: Search for Dark Matter II

T 36.3: Vortrag

Dienstag, 17. März 2026, 16:45–17:00, AM 00.014

Beyond standard model physics with electronic recoil data of XENONnT — •Sebastian Vetter — Karlsruhe Institute of Technology, Institute for Astroparticle Physics

The XENONnT detector is among the world leading experiments in the direct search for Weakly Interacting Massive Particles (WIMPs), one of the prime candidates to form particle Dark Matter (DM). XENONnT uses liquid Xe in a dual-phase time projection chamber (TPC) as a detector target. One of the great advantages of a TPC is the ability to discriminate between energy deposits from incoming particles on the target nuclei, nuclear recoils (NRs), or on the electron clouds of the atoms, electron recoils (ERs). While WIMPs are expected to interact via NRs, many signals of scientific interest can occur as ERs. The ER data allows us to explore the flux of solar neutrinos from the pp chain, and look beyond the standard model for other than WIMP DM candidates like Dark Photons or Axion Like Particles.

In this talk, I will highlight challenges and opportunities, as well as the latest status, in the analysis of XENONnT ER data in a wide energy range from keV to MeV scale.

This work is supported in part through the Helmholtz Initiative and Networking Fund (grant agreement no.~W2/W3-118) and through the grant 05A23VK3 within the ErUM-Pro funding line by the German Federal Ministry of Research, Technology and Space. In addition, support by the KIT graduate school KSETA is gratefully acknowledged.

Keywords: Dark Matter