Does asymmetric dark matter always lead to an anti-neutrino signal?

Abstract

Under rather generic assumptions, we show that in the asymmetric dark matter (ADM) scenario, the sign of the B-L asymmetry stored in the dark matter sector and the standard model sector are always the same. One particularly striking consequence of this result is that, when the dark matter decays or annihilates in the present universe, the resulting final state always involves an anti-neutrino. As a concrete example of this, we construct a composite ADM model and explore the feasibility of detecting such an anti-neutrino signal in atmospheric neutrino detectors.

4 pages, 1 figure

References in corpus (3)

• Hylogenesis: A Unified Origin for Baryonic Visible Matter and Antibaryonic Dark Matter
• Dark Nuclei I: Cosmology and Indirect Detection
• Indirect Detection Signatures for the Origin of Asymmetric Dark Matter

Cited by in corpus (10)

• Composite Asymmetric Dark Matter with a Dark Photon Portal
• Asymmetric Dark Matter Models in SO(10)
• Baryon-Dark Matter Coincidence in Mirrored Unification
• Maximally self-interacting dark matter: models and predictions
• Ultraviolet Completion of a Composite Asymmetric Dark Matter Model with a Dark Photon Portal
• Asymmetric accidental composite dark matter
• Chiral Composite Asymmetric Dark Matter
• Sharing but not Caring: Dark Matter and the Baryon Asymmetry of the Universe
• LHC Lifetime Frontier and Visible Decay Searches in Composite Asymmetric Dark Matter Models
• Composite asymmetric dark matter with a dark photon portal: Multimessenger tests