Simulations for direct dark matter searches using ALPS II's TES detection system

Christina Schwemmbauer, Yonit Hochberg, Katharina Sophie Isleif, Friederike Januschek, Benjamin V. Lehmann, Axel Lindner, Manuel Meyer, Gulden Othman, José Alejandro Rubiera Gimeno

Research output: Contribution to journalConference articlepeer-review

Abstract

Transition Edge Sensors (TES) are superconducting microcalorimeters that can be used for singlephoton detection with extremely low backgrounds. When they are within their superconducting transition region, small temperature fluctuations-like the energy deposited by single photons- lead to large resistance variations. These variations can be measured using Superconducting Quantum Interference Devices (SQUIDs). This technology is planned to be used as a singlephoton detector for later runs of the ALPS II experiment, a light-shining-through-walls experiment at DESY Hamburg, searching for Axion-Like Particles (ALPs), which are possible Dark Matter (DM) candidates. Due to the very low dark count rates in our setup, our TES system might be viable for direct DM searches at sub-MeV masses through electron-scattering of DM in the superconducting chip, as well. Simulations concerning background rejection and calibration methods demonstrate the needed sub-eV sensitivity already.

Original languageAmerican English
Article number055
JournalProceedings of Science
Volume454
StatePublished - 17 Apr 2024
Event1st General Meeting and 1st Training School of the COST Action COSMIC WISPers, COSMICWISPers 2023 - Lecce, Italy
Duration: 5 Sep 202314 Sep 2023

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