REVIEW 4 cited by
Phenomenology of Self-Interacting Dark Matter in a Matter-Dominated Universe
Not yet reviewed by Pith; the record is open.
This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.
SPECIMEN: schema-true, not a live event
T0 review · schema-true
One-sentence machine reading of the paper's core claim.
pith:XXXXXXXX · record.json · timestamp
read the original abstract
We study production of self-interacting dark matter (DM) during an early matter-dominated phase. As a benchmark scenario, we consider a model where the DM consists of singlet scalar particles coupled to the visible Standard Model (SM) sector via the Higgs portal. We consider scenarios where the initial DM abundance is set by either the usual thermal freeze-out or an alternative freeze-in mechanism, where DM was never in thermal equilibrium with the SM sector. For the first time, we take the effect of self-interactions within the hidden sector into account in determining the DM abundance, reminiscent to the Strongly Interacting Massive Particle (SIMP) scenario. In all cases, the number density of DM may change considerably compared to the standard radiation-dominated case, having important observational and experimental ramifications.
Forward citations
Cited by 4 Pith papers
-
Can the universe be matter-dominated after a supercooled first-order phase transition?
After a supercooled first-order phase transition, the scalar field's equation of state is set by the bubble-wall Lorentz factor γ*, and matter domination is delayed until a/a* ≃ γ* in the free-streaming limit.
-
Probing low-reheating scenarios with minimal freeze-in dark matter
In the minimal freeze-in dark photon model, low-temperature reheating pushes the required portal coupling to larger values, and the exact curve depends on the equation of state during reheating, widening the reach of ...
-
Big-Bang Nucleosynthesis and WIMP Dark Matter Freeze-Out as Probes of Yukawa Cosmology
Using BBN and WIMP relic density, the authors constrain the Yukawa gravity coupling α to about -0.017 to 0.018, with the lithium discrepancy still unexplained.
-
$Z'$-Mediated Dark Matter with Low-Temperature Reheating
Low-temperature reheating shifts the relic-density contours of Z'-mediated dark matter so that WIMP and FIMP solutions merge and new regions become testable.
Discussion (0). Continue with ORCID to comment.