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T: Fachverband Teilchenphysik

T 80: Axions/ALPs II

T 80.5: Vortrag

Donnerstag, 19. März 2026, 17:15–17:30, KH 02.019

MADMAX analysis procedures and preliminary results of CB100 cold experiment — •Haotian Wang for the MADMAX collaboration — III. Physikalisches Institut A, RWTH Aachen University, Aachen

MADMAX is a dielectric haloscope experiment that searches for QCD axion dark matter in the mass range of a few tens to a few hundred micro-eV by exploiting axion-photon conversion in a strong magnetic field enhanced by a dielectric booster. In this contribution, we present the general MADMAX data analysis procedures, developed for the treatment of large sets of power spectra, including background modeling, the combination of multiple measurements, and the statistical inference of exclusion limits. These methods are then applied to data from the CB100 closed-booster prototype operated in a magnetic field at cryogenic temperatures, and preliminary exclusion limits are shown.

Keywords: axion dark matter; dielectric haloscope; MADMAX; power spectrum analysis; CB100 prototype