Dark matter through the axion-gluon portal
Patrick J. Fitzpatrick, Yonit Hochberg, Eric Kuflik, Rotem Ovadia, Yotam Soreq
Abstract
Axionlike-particles are a well-motivated extension of the Standard Model that can mediate interactions between the dark matter and ordinary matter. Here we consider an axion portal between the two sectors, where the axion couples to dark matter and to QCD gluons. We establish the relevant processes of interest across the scales of dark matter and axion masses and couplings, identify the distinct mechanisms that control the dark matter relic abundance in each case, and extract the resulting experimental signatures of the gluonic axion portal to dark matter.
Topics & Concepts
AxionPhysicsDark matterParticle physicsMixed dark matterWeakly interacting massive particlesWarm dark matterLight dark matterQuantum chromodynamicsScalar field dark matterAstrophysicsCosmologyDark energyDark Matter and Cosmic PhenomenaParticle physics theoretical and experimental studiesCosmology and Gravitation Theories