Heidelberg 2022 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 77: Search for Dark Matter 4
T 77.5: Vortrag
Mittwoch, 23. März 2022, 17:15–17:30, T-H36
Axion simulation in various geometry — •Johannes Ulrichs1, Le Hoang Nguyen1, Dieter Horns1, and Andrei Lobanov1,2 — 1Institut für Experimentalphysik, Universität Hamburg, Hamburg, Deutschland — 2Max-Planck-Institut für Radioastronomie, Bonn, Deutschland
Using commercial FEM software (COMSOL TM), we solve the Axion-Maxwell equation in the geometrical context of experiments that search for axion and axion-like-particles (ALPs) dark matter. Firstly, the BRASS-p is the pilot experiment that search for axion/alps in the frequency range of 12 - 18 GHz (49.63 - 74.4 μeV). The multiphysics simulation (AC/DC and RF modules) is used to explore the realistic magnetic field of the magnet panels and the axion-induced radiation. Accompanied with further studies concerning the efficiency and coherence effect of the overall setup. Secondly, we consider the possibility of detecting the skin current induced by the low mass axion dark matter (few kHz to 3MHz, 4.14 peV - 12.4 neV) using a novel solenoid magnet. The theoretical foundation, simulation result is discussed. Followed by the proposed approaches to pickup the signal using High Impedance Amplifier (HIA) and SQUIDS receiver.