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Neutrino-Assisted Early Dark Energy is a Natural Resolution of the Hubble Tension

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arxiv 2302.09091 v1 pith:X6FIRAQ4 submitted 2023-02-17 astro-ph.CO hep-ph

classification astro-ph.COhep-ph
keywords naturaldarkearlyenergyhubbleinterestingmodelneutrino-assisted
verification ladder T0 review T1 audit T2 compute T3 formal
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It has very recently been claimed that the neutrino-assisted early dark energy model -- a promising resolution of the Hubble tension that can ameliorate the theoretical fine-tuning and coincidence problems that plague other theories -- does not provide natural or cosmologically interesting results. In this short paper, we show that these conclusions are incorrect for three reasons. First, we identify errors in the calculations. Second, we dispute the definition in of what constitutes an 'interesting' and 'natural' model. Finally, we demonstrate that the conclusions of were arrived at without fully exploring the full parameter space of the model. Neutrino-assisted early dark energy remains a natural and interesting potential resolution of the Hubble tension that merits further study.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Hubble tension: a short review of theoretical explanations

    astro-ph.CO 2026-07 accept novelty 4.0 of 10

    A comprehensive review finds no theoretical Hubble-tension solution yet passes all consistency tests; new early-dark-energy chains reach high H0 only when the SH0ES calibration is added.

  2. Beyond LambdaCDM: How the Hubble tension challenges early universe physics

    astro-ph.CO 2025-07 reject novelty 2.0 of 10

    An Early Dark Energy model can fit H0=73.56 km/s/Mpc only with a high EDE fraction and high peak redshift, while Bayesian evidence favors the model only in a narrow, finely-tuned parameter space.

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