Chiral Dark Sector
Raymond T. Co, Keisuke Harigaya, Yasunori Nomura

TL;DR
This paper introduces a simple dark sector model where dark matter is composed of composite states from hidden strong dynamics, with rich phenomenology including potential detection signals and dark radiation.
Contribution
The model uniquely links dark matter stability to accidental symmetries and explores phenomenology with a minimal parameter set, including a kinetic mixing portal.
Findings
Dark matter can be a mixture of dark pion and dark baryon detectable via experiments.
Large Hadron Collider can potentially discover the $U(1)_D$ gauge boson.
Dark pion can act as dark radiation, correlated with dark matter detection signals.
Abstract
We present a simple and natural dark sector model in which dark matter particles arise as composite states of hidden strong dynamics and their stability is ensured by accidental symmetries. The model has only a few free parameters. In particular, the gauge symmetry of the model forbids the masses of dark quarks, and the confinement scale of the dynamics provides the unique mass scale of the model. The gauge group contains an Abelian symmetry , which couples the dark and standard model sectors through kinetic mixing. This model, despite its simple structure, has rich and distinctive phenomenology. In the case where the dark pion becomes massive due to quantum corrections, direct and indirect detection experiments can probe thermal relic dark matter which is generically a mixture of the dark pion and the dark baryon, and the Large Hadron Collider can discover the …
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
