Calendar of Physics Talks Vienna

Searching for dark matter with table-top experiments
Speaker:Arne Wickenbrock (Johannes Gutenberg-Universität Mainz)
Abstract:The nature of dark matter, the invisible substance making up over 4/5 of the matter in the Universe, is one of the most fundamental mysteries of modern physics. Ultralight bosons such as axions, axion-like particles or dark photons could make up most of the dark matter. Couplings between such bosons and nuclear spins may enable their direct detection via nuclear magnetic resonance (NMR) spectroscopy: as nuclear spins move through the galactic dark-matter halo, they couple to dark-matter particles and behave as if they were in an oscillating magnetic field, generating a dark-matter-driven NMR signal. I will discuss ways of detecting dark matter with atomic physics machines, present the Cosmic Axion Spin Precession Experiment (CASPEr) and its results in 2019 and talk about recent progress of the Global Network of Optically Pumped Magnetometers for Exotic Physics search (GNOME).
Date: Fri, 27.03.2020
Time: 15:30
Location:Atominstitut, Stadionallee 2, 1020 Wien - Hörsaal
Contact:P. Haslinger