Particle Astrophysics Seminar: Axion dark matter and dark energy detection

  • June 22, 2020, 2:00 pm US/Central
  • Peter Graham, Stanford

Abstract: If dark energy is not a cosmological constant but in fact dynamical, it is natural for it to have axion-like couplings to Standard Model particles.  It is then in principle possible to do direct detection of dark energy in a laboratory experiment.  We found a technique using proton storage ring experiments that could have the sensitivity needed to directly detect dark energy.  Additionally, since the local dark matter density is significantly higher than the dark energy density, such an experiment is also one of the most sensitive ways to directly detect ultralight (including ‘fuzzy’) axion dark matter.  I will also discuss the use of muon storage ring experiments and a related, new supernova bound on the axion-muon coupling.

For more information, please contact Yu-Dai Tsai at