WIMP and SIMP Dark Matter from the Spontaneous Breaking of a Global Group

Abstract

We propose and study a scalar extension of the Standard Model which respects a ${\mathbb{Z}}_3$ symmetry remnant of the spontaneous breaking of a global $U(1{)}_{\text{DM}}$ symmetry. Consequently, this model has a natural dark matter candidate and a Goldstone boson in the physical spectrum. In addition, the Higgs boson properties are changed with respect to the Standard Model due to the mixing with a new particle. We explore regions in the parameter space taking into account bounds from the measured Higgs properties, dark matter direct detection as well as measurements of the effective number of neutrino species before recombination. The dark matter relic density is determined by three classes of processes: the usual self-annihilation, semi-annihilation and purely dark matter $3\to 2$ processes. The latter has been subject of recent interest leading to the so-called `Strongly Interacting Massive Particle' (SIMP) scenario. We show under which conditions our model can lead to a concrete realization of such scenario and study the possibility that the dark matter self-interactions could address the small scale structure problems. In particular, we find that in order for the SIMP scenario to work, the dark matter mass must be in the range $7-115$ MeV, with the global symmetry energy breaking scale in the TeV range.

28 pages, 17 artistic figures. Accepted for publication in JCAP

References in corpus (10)

• Too big to fail? The puzzling darkness of massive Milky Way subhaloes
• FeynRules - Feynman rules made easy
• Gauge Singlet Scalars as Cold Dark Matter
• Constraints on the Self-Interaction Cross-Section of Dark Matter from Numerical Simulations of the Merging Galaxy Cluster 1E 0657-5
• micrOMEGAs2.0: a program to calculate the relic density of dark matter in a generic model
• Too Big to Fail in the Local Group
• Dwarf galaxies in CDM and SIDM with baryons: observational probes of the nature of dark matter
• Constraints on the Higgs boson width from off-shell production and decay to Z-boson pairs
• Dark Matter Evidence, Particle Physics Candidates and Detection Methods
• Minimal semi-annihilating ${\mathbb{Z}}_N$ scalar dark matter

Cited by in corpus (19)

• How warm are non-thermal relics? Lyman-$\alpha$ bounds on out-of-equilibrium dark matter
• Light dark photon and fermionic dark radiation for the Hubble constant and the structure formation
• Self-interacting Dark Matter from Primordial Black Holes
• Light Dark Matter through Assisted Annihilation
• On thermal production of self-interacting dark matter
• Self-interacting Spin-2 Dark Matter
• Boosting Freeze-in through Thermalization
• Improved bounds on ${\mathbb{Z}}_3$ singlet dark matter
• Low-energy effective description of dark $Sp(4)$ theories
• Endothermic self-interacting dark matter in Milky Way-like dark matter haloes
• Implications of Two-component Dark Matter Induced by Forbidden Channels and Thermal Freeze-out
• A multi-component SIMP model with $U(1{)}_X\to Z_2\times Z_3$
• Unitarity Bound on Dark Matter in Low-temperature Reheating Scenarios
• $(g-2{)}_{e,\mu }$ and strongly interacting dark matter with collider implications
• SIMPly add a dark photon
• Fermionic Dark Matter in Dynamical Scotogenic Model
• Freezing-in Cannibal Dark Sectors
• Gravitational SIMPs
• SIMP dark matter and its cosmic abundances