Elementary particle

From Srafopedia

Elementary particles are particles we traditionally know as fundamental (i.e. they have no constituent parts to be broken into). For instance; the photon, gluon, quark, neutrino are examples of proven fundamental particles. Theoretical particles include the photon (due to the wave-particle duality of light), gravitons, tachyons and gauge bosons.

Possibly the most relevant elementary particle to His Dark Materials is the Dark Matter particle, aka Dust - a particle that has no mass, no charge and no strangeness. It is studied by the Dark Matter Research Unit. Although it is undetectable by conventional means its existance is proven by using complex mathematical equations.