Pathways and impediments towards a detection of the relic neutrino wind

arXiv:2607.05221 · hep-ph, astro-ph.CO · Submitted 2026-07-06 · Read on arXiv

Andrew J. Long, Michiru Uwabo-Niibo, Masahide Yamaguchi

hep-ph, astro-ph.CO

Submitted: 2026-07-06

Comments: 34 pages, 4 figures

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

Terminology

• Anisotropy — 23× in this paper · explained in 3 episodes
• Clustering — 10× in this paper · explained in 2 episodes
• Decoupling — 9× in this paper · explained in 2 episodes
• Benchmark — 6× in this paper · explained in 2 episodes
• Calibration — 6× in this paper · explained in 7 episodes
• Spectral Distortions — 3× in this paper · explained in 2 episodes
• Abundance — 1× in this paper · explained in 1 episode
• Degeneracy — 1× in this paper · explained in 3 episodes
• Fisher Information — 1× in this paper · explained in 3 episodes
• Institute for Basic Science — 1× in this paper

Sources

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• DESI DR2 Results II: Measurements of Baryon Acoustic Oscillations and Cosmological Constraints
• Constraints on Neutrino Physics from DESI DR2 BAO and DR1 Full Shape
• No $\nu$s is Good News
• The Cosmological Preference for Negative Neutrino Mass
• New Interpretations of the Cosmological Preference for a Negative Neutrino Mass
• Synergy between cosmological and laboratory searches in neutrino physics
• Charged current cross section for massive cosmological neutrinos impinging on radioactive nuclei
• Prospects for cosmic neutrino detection in tritium experiments in the case of hierarchical neutrino masses
• Direct Detection of the Cosmic Neutrino Background Including Light Sterile Neutrinos
• Detecting non-relativistic cosmic neutrinos by capture on tritium: phenomenology and physics potential
• Precise Capture Rates of Cosmic Neutrinos and Their Implications on Cosmology
• Unstable Cosmic Neutrino Capture
• Limits on the cosmic neutrino background
• Beta Decaying Nuclei as a Probe of Cosmic Neutrino Background
• Development of a Relic Neutrino Detection Experiment at PTOLEMY: Princeton Tritium Observatory for Light, Early-Universe, Massive-Neutrino Yield
• Neutrino physics with the PTOLEMY project: active neutrino properties and the light sterile case

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