REVIEW 6 cited by
Hints of dark matter-neutrino interactions in Lyman-$\alpha$ data
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
abstract
In this work we investigate the possibility that dark matter and (massive) neutrinos can interact via a simple, constant cross section. Building on previous numerical efforts, we constrain this model with CMB, BAO and, in particular, Lyman-$\alpha$ data. We find that the latter hint to a significant departure from $\Lambda$CDM, with a preference for an interaction strength about 3$\sigma$ away from zero. We trace the origin of this preference back to the additional tilt that the interacting scenario can imprint on the Lyman-$\alpha$ flux power spectrum, solving a well-known tension in the determination of this quantity between early-time and Lyman-$\alpha$ probes. Future work including complementary Lyman-$\alpha$ data as well as dedicated numerical simulations will be crucial in order to test these results.
Forward citations
Cited by 6 Pith papers
-
High resolution Lyman-{\alpha} forest constraints on dark matter-neutrino scattering
The Lyman-alpha forest constrains dark matter-neutrino scattering to u_nu_chi < 1.5e-8 (95% C.L.), excluding previously claimed hints of a non-zero interaction.
-
Dark matter scattering with pre-supernova neutrinos
Attenuation of pre-supernova electron antineutrinos by local dark matter yields upper limits on the reduced DM–ν cross section of order 10^{-21} cm^{2}/GeV at detectors such as JUNO, Super-K and KamLAND.
-
21 cm Cosmology Sensitivity to Small-Scale Structure: Warm vs Neutrino-Interacting Dark Matter
21 cm forecasts show HERA can detect νDM interactions down to ~3×10⁻³⁵ cm² (assuming zero modelling error) but cannot distinguish νDM from warm dark matter.
-
New Constraints on Neutrino-Dark Matter Interactions: A Comprehensive Analysis
Most benchmark neutrino-dark matter couplings adopted in previous studies are excluded when laboratory meson and Z decay bounds are combined with cosmological and astrophysical constraints, leaving only special galact...
-
The Highest-Energy Neutrino Event Constrains Dark Matter-Neutrino Interactions
KM3-230213A limits dark matter-neutrino scattering to below about 1e-22 cm^2/GeV at 220 PeV, but most simple dark matter models are excluded by unitarity above MeV masses.
-
Cosmological impact of $\nu$DM interactions enhanced in narrow redshift ranges
A redshift-limited dark matter-neutrino interaction reproduces the observed preference for non-zero coupling in CMB and cosmic shear data and evades small-scale structure bounds.
Discussion (0). Sign in to comment.