REVIEW 8 cited by
Self-interacting dark matter implied by nano-Hertz gravitational waves
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
Signed reviews
abstract
The self-interacting dark matter (SIDM) paradigm offers a potential solution to the small-scale structure problems faced by collision-less cold dark matter. This framework incorporates self-interactions among dark matter particles, typically mediated by a particle with a MeV-scale mass. Recent evidences of nano-Hertz gravitational waves from pulsar timing arrays (PTAs) such as NANOGrav, CPTA, EPTA, and PPTA suggest the occurrence of a first-order phase transition (FOPT) at a MeV-scale temperature. Considering the close proximity between these two scales, we propose that the mediator mass in the SIDM model originates from the spontaneous breaking of a $U(1)'$ symmetry, which is driven by the FOPT indicated by PTA data. Consequently, the alignment of these two scales is believed to be deeply connected by the same underlying physics. By extensively exploring the parameter space, remarkably, we find that the parameter space favored by SIDM just provides an explanation for the PTA data.
Forward citations
Cited by 8 Pith papers
-
From new physics to a running power law and back again: Minimal refitting techniques for the reconstruction of the gravitational-wave background signal in pulsar timing array data
A new refitting technique maps any gravitational-wave background spectrum onto a running-power-law reference model via sensitivity-weighted chi-squared minimization, and uses the pullback of the reference posterior to...
-
Prospecting bipartite Dark Matter through Gravitational Waves
A two-component dark matter model with an inert triplet scalar and a singlet fermion can explain the relic abundance while producing a strong electroweak phase transition and gravitational wave signals detectable by L...
-
The Sound of Dark Sectors in Pulsar Timing Arrays
A dark sector phase transition at the MeV scale, with a dark Higgs mass around 3 MeV, can reproduce the gravitational wave background seen by pulsar timing arrays.
-
Cosmic string gravitational wave backgrounds at LISA: II. Reconstruction of conventional signals over astrophysical foregrounds
When realistic astrophysical foregrounds are included, LISA can reconstruct the cosmic-string tension to 10% precision only for Gμ ≳ 10^{-11}, 10^5 times larger than foreground-free forecasts.
-
Beyond the Daisy Chain: Running and the 3D EFT View of Supercooled Phase Transitions
With renormalisation-group running included, the one-loop high-temperature Daisy-resummed potential at µ=πT reproduces the phase-transition parameters of the two-loop dimensionally reduced EFT, while the no-running on...
-
Cosmic string gravitational wave backgrounds at LISA: I. Signal survey, template reconstruction, and model comparison
As provided, the manuscript body (random lasing) does not correspond to the abstract (cosmic string gravitational wave backgrounds at LISA), leaving the abstract's quantitative claims unsupported by any accessible text.
-
NANOGrav 15-year gravitational-wave signals from binary supermassive black-holes seeded by primordial black holes, and implications for the origins of Little Red Dots
A PBH abundance of 10^-14–10^-12 of CDM, with seed masses 1–10^3 M_sun, is fitted to the NANOGrav 15-year background via SMBH mergers, consistent with 21-cm limits.
-
Can a secluded self-interacting dark sector generate detectable gravitational waves?
In a secluded self-interacting dark sector with a dark U(1)' and dark radiation, existing Neff and Lyman-alpha limits remove nearly all gravitational-wave-detectable parameter space; one charge assignment keeps a smal...
Discussion (0). Continue with ORCID to comment.