Göttingen 2025 – scientific programme

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T: Fachverband Teilchenphysik

T 89: Axions/ALPs III

T 89.1: Talk

Friday, April 4, 2025, 09:00–09:15, VG 0.110

Advancing Axion Detection: Cryogenic Calibration and Dark Matter Search with MADMAX — •Juan Maldonado for the MADMAX collaboration — maldonad@mpp.mpg.de

Discovery of the axion could solve both the strong CP problem, fundamental in particle physics, and the dark matter problem. The MAgnetized Disc and Mirror Axion eXperiment - MADMAX - is a project based on the novel dielectric haloscope concept to detect axion dark matter in the mass range around 100 ueV through enhancement of the inverse Primakoff process. The higher precision required to operate an axion haloscope at a mass range above 40*eV corresponding to a frequencies greater than 10 GHz poses additional challenges in the realm of microwave engineering and cryogenics, with potential applications to other fields of research. In this talk, I will present the cryogenic calibration of the experimental setup and discuss a first dark matter search using a MADMAX prototype at a temperature below 10 K, performed at CERN in 2024.

Keywords: cryogenic; dark matter; axions; haloscope; microwaves