Hunting Dark Matter with Multimessenger Astronomy Beyond the Standard Model

Tuesday 15 Oct 2024, 14:15 → 15:15 Europe/London

Dark matter (DM) is a predominant constituent of all matter in the Universe. Despite decades of efforts its nature remains mysterious and new ideas are necessary. As DM experiments begin to delve into the  astrophysical neutrino fog, I will show how neutrino experiments offer distinct opportunities to probe light DM. Drawing on ideas from neutrino astronomy, I will demonstrate how advancements in quantum sensor technology can provide new insights into light DM through multimessenger astronomy beyond the Standard Model, particularly if it manifests as macroscopic bosonic stars or emerges from transient astrophysical sources.

Recent astronomical observations, however, might be pointing towards a different DM paradigm — primordial black holes (PBHs) formed in the early Universe. PBHs can be linked to breakthroughs in gravitational wave astronomy and major puzzles such as origins of heavy elements like gold. I will describe unique probes enabling establishing if DM is composed of mixture of particles and PBHs. More so, PBHs can themselves serve as new factories of particle DM, with unusual signatures. Related ideas can also  lead to new type of baryogenesis without fine tuning.

14:15 → 15:15 Seminar

Speaker: Prof. Volodymyr Takhistov (QUP, KEK)