Leptonic Indirect Detection Signals from Strongly Interacting Asymmetric Dark Matter

Understand

Particles with TeV mass and strong self-interactions generically have the right annihilation cross section to explain an observed excess of cosmic electrons and positrons if the end-product of the annihilation is charged leptons.

• We present an explicit model of strongly-coupled TeV-scale dark matter whose relic abundance related to the matter-antimatter asymmetry of the observed universe.
• The B - L asymmetry of the standard model is transfered to the dark sector by an operator carrying standard model lepton number.
• Lepton number violation naturally induces dark matter particle-antiparticle oscillations at late times, allowing dark matter-antimatter annihilations today.