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Würzburg 2018 – scientific programme

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T: Fachverband Teilchenphysik

T 77: Suche nach dunkler Materie IV

T 77.2: Group Report

Thursday, March 22, 2018, 16:50–17:10, Philo-HS5

The MAgnetized Disk and Mirror Axion dark matter eXperiment (MADMAX) — •Stefan Knirck for the MADMAX collaboration — Max-Planck-Institute for Physics, Munich, Germany

In contrast to WIMPs, light Dark Matter candidates have increasingly come under the focus of scientific interest. In particular the QCD axion is very well motivated, since it was originally introduced to solve another fundamental problem: CP-conservation in strong interactions. Galactic axions and axion-like particles in a strong magnetic field can be converted to photons at boundaries between materials of different dielectric constants. Combining many such surfaces, one can enhance this conversion significantly using constructive interference and resonances. The proposed MADMAX setup containing approximately 80 high dielectric disks in a 10 T magnetic field would probe the well-motivated mass range of 40–400 µeV, a range which is at present inaccessible by existing cavity searches. We explain the foundations of this approach and give an overview over the R&D challanges the newly founded collaboration is facing, concluding with sensitivity estimates for the planned setup.

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