Astroparticle physics

mysterious non-luminous matter (and/or radiation) comprising most of the matter in our observable universe

high-speed, i.e. high-energy particle, mainly originating in outer space, outside the Solar system

An axion () is a hypothetical elementary particle originally theorized in 1978 independently by Frank Wilczek and Steven Weinberg as the Goldstone boson of Peccei–Quinn theory, which had been proposed in 1977 to solve the strong CP problem in quantum chromodynamics (QCD). If axions exist and have low mass within a specific range, they are of interest as a possible component of cold dark matter.

dark matter candidate

branch of particle physics

proportional counter that detects charged particles and photons

cosmic-ray particle with a kinetic energy greater than 1 EeV (10¹⁸ eV)

theoretical upper limit on the energy of cosmic ray protons

hypothetical counterpart to ordinary matter

Particle physics process affecting neutrinos

research project to observe air showers

hypothetical form of dark matter consisting of particles with strong self-interactions

Astroparticle physicist and professor

hypothetical particles that interact strongly with ordinary matter, but could form the inferred dark matter despite this

hypothetical scalar particle

experiment to determine the composition of cosmic rays

dark matter weakly interacting massive particles candidates with masses less than 1 GeV