Novel Electromagnetic Properties of Elementary Particles

Abstract

Quantum electrodynamics is our most precisely and stringently tested theory. What happens when some non electrically charged elementary particles couple to the photon? We discuss neutrino electromagnetic properties, a dark photon portal to dark matter and magnetic monopoles produced by cosmic rays in the milky way. We don't just discuss these models, but show how to place(in some cases) leading constraints on these models using future particle physics experiments or astrophysics. The Deep Underground Neutrino Experiment will have the highest muon neutrino flux yet, and will be able to constrain neutrino electromagnetic properties better than current terrestrial experiments. Dark matter is known to be cold, but a subcomponent could be hot or boosted, if this is a dark photon which necessarily couples to the photon, we could see this in future gaseous detectors which are better suited because they have less in-medium effects than liquid Xenon for example. Monopoles of TeV scale masses can be produced by Cosmic Ray - Interstellar Medium collisions. These monopoles would impact the well measured 10−6 Gauss galactic magnetic field or it's production mechanism allowing us to place constraints on monopole cross section.