Dark matter as a weakly coupled dark baryon

Abstract

Dark Matter might be an accidentally stable baryon of a new confining gauge interaction. We extend previous studies exploring the possibility that the DM is made of dark quarks heavier than the dark confinement scale. The resulting phenomenology contains new unusual elements: a two-stage DM cosmology (freeze-out followed by dark condensation), a large DM annihilation cross section through recombination of dark quarks (allowing to fit the positron excess). Light dark glue-balls are relatively long lived and give extra cosmological effects; DM itself can remain radioactive.

Dark matter meets quantum gravity

“…[13,99] or a new non-abelian interaction, see Refs. [100][101][102]. Relevant constraints might also be obtained in these scenarios, in particular, if the non-abelian gauge coupling is not asymptotically free by itself.…”

Bound-state dark matter and Dirac neutrino masses

“…Our model can be falsified relatively soon by dark matter searches, and could also be cross-checked later by a next generation hadron collider. Variants of our construction may be envisaged, in which the dark matter is bound by a new hypercolor interaction [30], instead of QCD, as suggested in Ref. [2].…”

Scalar gauge dynamics and Dark Matter

“…We also consider scale-invariant potentials, where running quartics lead to dynamical symmetry breakingà la Coleman-Weinberg. 2 The possibility that DM is a composite state made of elementary fermions in QCD-like theories was explored in [5,6]. As elementary scalars interact with the Higgs through a scalar quartic, while elementary fermions can have Yukawa couplings, the phenomenology is different.…”

“…The values of k at the absolute minima of renormalizable potentials [2] and of Coleman-Weinberg potentials are either minimal (k = 1) or maximal (k = N or N − 1). We recall that SU(2) = SO(3) = Sp (2), SO(5) = Sp(4), SU(4) = SO (6), SO(4) = SU(2) 2 .…”