Anapole Dark Matter Interactions as Soft Hidden Photons

Abstract

We propose a model where the anapole appears as a hidden photon that is coupled to visible matter through a kinetic mixing. For low momentum $|\mathbf{p}|\ll M$ where $M$ is the cutoff the model (soft hidden photons limit) is reduced to the Ho-Scherrer description. We show that the hidden gauge boson is stable and therefore the hidden photons, indeed, are candidates for dark matter. Our approach shows that anapole and kinetic mixing terms are equivalent descriptions seen from different scales of energy.

typos and references added, accepted in PLB

References in corpus (7)

• A Theory of Dark Matter
• Dark Matter Candidates from Particle Physics and Methods of Detection
• Non-perturbative Effect on Thermal Relic Abundance of Dark Matter
• Cosmic neutrino cascades from secret neutrino interactions
• Gamma rays and positrons from a decaying hidden gauge boson
• High-energy Cosmic-Ray Positrons from Hidden-Gauge-Boson Dark Matter
• Anapole dark matter annihilation into photons