Inception of Self-Interacting Dark Matter with Dark Charge Conjugation Symmetry

Abstract

A new understanding of the stability of self-interacting dark matter is pointed out, based on the simplest spontaneously broken Abelian $U(1)$ gauge model with one complex scalar and one Dirac fermion. The key is the imposition of dark charge conjugation symmetry. It allows the possible existence of two stable particles: the Dirac fermion and the vector gauge boson which acts as a light mediator for the former's self-interaction. Since this light mediator does not decay, it avoids the strong cosmological constraints recently obtained for all such models where the light mediator decays into standard-model particles.

9 pages, no figure, title modified, references added

References in corpus (3)

• Is dark matter with long-range interactions a solution to all small-scale problems of ΛCDM cosmology?
• Strong constraints on self-interacting dark matter with light mediators
• Dark Sectors 2016 Workshop: Community Report

Cited by in corpus (24)

• Self-interacting dark matter and muon $g-2$ in a gauged U$(1{)}_{L_{\mu }-L_{\tau }}$ model
• BBN constraints on MeV-scale dark sectors. Part II. Electromagnetic decays
• Multi-Component Dark Matter: the vector and fermion case
• BBN constraints on MeV-scale dark sectors. Part I. Sterile decays
• Scotogenic $U(1{)}_{\chi }$ Dirac Neutrinos
• Maximally self-interacting dark matter: models and predictions
• Two-Loop $Z_4$ Dirac Neutrino Masses and Mixing, with Self-Interacting Dark Matter
• Minimal self-interacting dark matter models with light mediator
• Self-interacting dark matter with a stable vector mediator
• Dark Matter Bound State Formation in Fermionic $Z_2$ DM model with Light Dark Photon and Dark Higgs Boson
• Self-interacting dark matter with a vector mediator: kinetic mixing with U(1)${}_{(B-L{)}_3}$ gauge boson
• Strongly Interacting Neutrino Portal Dark Matter
• Asymmetric dark matter with a spontaneously broken $U(1{)}^{\prime }$: self-interaction and gravitational waves
• Unification for the Darkly Charged Dark Matter
• Dark $SU(2{)}_D$ Gauge Symmetry and Scotogenic Dirac Neutrinos
• Strong Dark Matter Self-Interaction from a Stable Scalar Mediator
• Unification of the Standard Model and Dark Matter Sectors in [SU(5)$\times$U(1)]${}^4$
• Vector Dark Matter with Higgs Portal in Type II Seesaw framework
• Phenomenology of a two-component dark matter model
• Non-Abelian Gauge Lepton Symmetry as the Gateway to Dark Matter
• Leptonic Dark Matter with Scalar Dilepton Mediator
• Indirect detection of long-lived particles in a rich dark sector with a dark vector portal
• Vector Dark Matter in a $U(1{)}_X$ extended 2HDM
• Producing and constraining self-interacting hidden sector dark matter