Dark matter spectra from the electroweak to the Planck scale
C. Bauer, Nicholas L. Rodd, B.R. Webber
Abstract
A bstract We compute the decay spectrum for dark matter (DM) with masses above the scale of electroweak symmetry breaking, all the way to the Planck scale. For an arbitrary hard process involving a decay to the unbroken standard model, we determine the prompt distribution of stable states including photons, neutrinos, positrons, and antiprotons. These spectra are a crucial ingredient in the search for DM via indirect detection at the highest energies as being probed in current and upcoming experiments including IceCube, HAWC, CTA, and LHAASO. Our approach improves considerably on existing methods, for instance, we include all relevant electroweak interactions.
Topics & Concepts
PhysicsElectroweak interactionParticle physicsNeutrinoElectroweak scalePlanckDark matterSymmetry breakingPhysics beyond the Standard ModelNuclear physicsAstrophysicsParticle physics theoretical and experimental studiesDark Matter and Cosmic PhenomenaCosmology and Gravitation Theories