Sebastian Hoof, "Searching for axions using data from astrophysics, cosmology, and the lab"

Wednesday 8 Nov 2023, 16:00 → 17:00 Europe/Rome

2G26

An ever-growing number of experiments is exploring the remaining axion and axion-like particle parameter space, which includes the exciting prospect of discovering theoretically preferred QCD axion models. I will introduce these elusive particles, some popular search strategies, and hints for their existence. Combining the data from these experiments in global fits is not only useful but typically required to learn about the axion’s properties. If discovered, axions could provide us with a “new pair of eyes” to view the Universe. One example includes a study of our Sun’s, more specifically its macroscopic magnetic fields, metallicity, or temperature profile. I will explicitly demonstrate the reconstruction of the latter and briefly summarise further prospects for axions as possible multi-messenger probes.