Karlsruhe 2024 – scientific programme

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T: Fachverband Teilchenphysik

T 32: Methods in astroparticle physics 2

T 32.2: Talk

Tuesday, March 5, 2024, 16:15–16:30, Geb. 20.30: 2.067

TAXO, Towards a low background SDD for IAXO — Joanna Bilicki, Patrick Bongratz, Frank Edzards, Susanne Mertens, •Lucinda Schönfeld, Juan Pablo Ulloa Beteta, Christoph Wiesinger, and Michael Willers — Physik Department, Technische Universität München, Garching, DE

Axions are a dark matter candidate and could solve the strong CP problem. The International Axion Observatory (IAXO) is a next-generation experiment attempting to find these elusive particles by converting solar axions to X-rays. Silicon Drift Detectors (SDDs) are well suited to detect this rare axion signal. The TAXO project attempts to tackle the challenging IAXO background requirements with an SDD. I will present the current status of the TAXO project, in particular deep-underground and above-ground background measurements as well as simulation studies of cosmic-induced backgrounds. This project has received funding from the European Research Council (ERC) under the European Union Horizon 2020 research and innovation programme (grant agreement No. 852845). It has also been supported by the DFG through the Excellence Cluster ORIGINS.

Keywords: Axion; X-ray detector; Silicon drift detector; Rare event search; Low background