Ly alpha forest bounds on sterile neutrino production via neutrino self-interactions

arXiv:2602.17821 · astro-ph.CO, hep-ph · Submitted 2026-02-19 · Read on arXiv

astro-ph.CO, hep-ph

Submitted: 2026-02-19

Updated: 2026-09-15

Comments: 13 pages, 7 figures; Matches the version accepted in Phys. Rev. D

DOI: 10.1103/s1gj-d111

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

• Abundance — 32× in this paper · explained in 1 episode
• Matter Power Spectrum — 14× in this paper · explained in 2 episodes
• alpha — 9× in this paper · explained in 1 episode
• Hubble Tension — 5× in this paper · explained in 9 episodes
• Adam — 4× in this paper · explained in 2 episodes
• Accuracy — 3× in this paper · explained in 1 episode
• Atacama Cosmology Telescope — 3× in this paper
• Decoupling — 3× in this paper · explained in 2 episodes
• Effective Field Theory (EFT) — 3× in this paper · explained in 2 episodes
• Anisotropy — 2× in this paper · explained in 3 episodes
• Clustering — 2× in this paper · explained in 2 episodes
• Activation Function — 1× in this paper · explained in 1 episode
• Boltzmann Equation — 1× in this paper · explained in 2 episodes
• Consistency — 1× in this paper · explained in 3 episodes
• Degeneracy — 1× in this paper · explained in 3 episodes
• Forward modeling — 1× in this paper · explained in 2 episodes
• Loss Function — 1× in this paper · explained in 2 episodes
• National Science Foundation — 1× in this paper
• Stochastic Gradient Descent (SGD) — 1× in this paper · explained in 5 episodes

Sources

• A History of Dark Matter
• Dark Matter
• Planck 2018 results. VI. Cosmological parameters
• Sterile neutrinos in cosmology
• Constraining Sterile Neutrino Warm Dark Matter with Chandra Observations of the Andromeda Galaxy
• Sterile neutrino dark matter bounds from galaxies of the Local Group
• (Almost) Closing the $\nu$MSM Sterile Neutrino Dark Matter Window with NuSTAR
• The dark matter interpretation of the 3.5-keV line is inconsistent with blank-sky observations
• Constraints on Dark Matter Microphysics from the Milky Way Satellite Population
• A lower bound on the mass of Dark Matter particles
• Warm Dark Matter as a solution to the small scale crisis: new constraints from high redshift Lyman-alpha forest data
• Lyman-alpha Forests cool Warm Dark Matter
• Properties of Resonantly Produced Sterile Neutrino Dark Matter Subhalos
• Constraints on neutrino masses from Lyman-alpha forest power spectrum with BOSS and XQ-100
• New Constraints on the free-streaming of warm dark matter from intermediate and small scale Lyman-$\alpha$ forest data
• Milky Way Satellite Census. III. Constraints on Dark Matter Properties from Observations of Milky Way Satellite Galaxies
• Dark Matter Constraints from a Unified Analysis of Strong Gravitational Lenses and Milky Way Satellite Galaxies
• New Constraints on Warm Dark Matter from the Lyman-$\alpha$ Forest Power Spectrum
• Unveiling Dark Matter free-streaming at the smallest scales with high redshift Lyman-alpha forest
• Can Neutrino Self-interactions Save Sterile Neutrino Dark Matter?

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