The DOI matches its Crossref record; 3 of the 3 references it cites were found in a registry or an index.
Hot axions and the H0 tension
Open accessAbstract
Scattering and decay processes of thermal bath particles involving heavy leptons can dump hot axions in the primordial plasma around the QCD phase transition. We compute their relic density, parameterized by an effective number Δ N eff of additional neutrinos. For couplings allowed by current bounds, production via scattering yields Δ N eff ≲ 0.6 and Δ N eff ≲ 0.2 for the cases of muon and tau, respectively. Flavor violating tau decays to a lighter lepton plus an axion give Δ N eff ≲ 0.3. Such values of Δ N eff can alleviate the tension between the direct local measurement of the Hubble constant H 0 and the inferred value from observations of the Cosmic Microwave Background, assuming ΛCDM . We analyze present cosmological data from the Planck collaboration and baryon acoustic oscillations with priors given in terms of the axion-lepton couplings. For axions coupled to muons, the tension can be alleviated below the 3σ level. Future experiments will measure Δ N eff with higher precision, providing an axion discovery channel and probing the role of hot axions in the H 0 tension.
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Alam, S., Ata, M., Bailey, S., Beutler, F., Bizyaev, D., Blazek, J. A., Bolton, A. S., Brownstein, J. R., Burden, A., Chuang, C.-H., et al. (2017) · Monthly Notices of the Royal Astronomical Society · doi:10.1093/mnras/stx721 · Cited by 3,056
Beutler, F., Blake, C., Colless, M., Jones, D. H., Staveley-Smith, L., Campbell, L., Parker, Q., Saunders, W., & Watson, F. (2011) · Monthly Notices of the Royal Astronomical Society · doi:10.1111/j.1365-2966.2011.19250.x · Cited by 2,590
The clustering of the SDSS DR7 main Galaxy sample – I. A 4 per cent distance measure at z=0.15
Ross, A. J., Samushia, L., Howlett, C., Percival, W. J., Burden, A., & Manera, M. (2015) · Monthly Notices of the Royal Astronomical Society · doi:10.1093/mnras/stv154 · Cited by 1,745
Cited by
In the realm of the Hubble tension—a review of solutions *
Di Valentino, E., Mena, O., Pan, S., Visinelli, L., Yang, W., Melchiorri, A., Mota, D. F., Riess, A. G., & Silk, J. (2021) · Classical and Quantum Gravity · doi:10.1088/1361-6382/ac086d · Cited by 2,065
The landscape of QCD axion models
Di Luzio, L., Giannotti, M., Nardi, E., & Visinelli, L. (2020) · Physics Reports · doi:10.1016/j.physrep.2020.06.002 · Cited by 657
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Di Valentino, E., Anchordoqui, L. A., Akarsu, Ö., Ali-Haimoud, Y., Amendola, L., Arendse, N., Asgari, M., Ballardini, M., Basilakos, S., Battistelli, E., et al. (2021) · Astroparticle Physics · doi:10.1016/j.astropartphys.2021.102605 · Cited by 513
Self-citationDi Valentino, E., Said, J. L., Riess, A., Pollo, A., Poulin, V., Gómez-Valent, A., Weltman, A., Palmese, A., Huang, C. D., Bruck, C. V. D., et al. (2025) · Physics of the Dark Universe · doi:10.1016/j.dark.2025.101965 · Cited by 319
The galaxy power spectrum take on spatial curvature and cosmic concordance
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Metadata
- Authors
- D'Eramo, F., Ferreira, R. Z., Notari, A., & Bernal, J. L.
- Venue
- Journal of Cosmology and Astroparticle Physics
- Publisher
- IOP Publishing
- Published
- 2018-11-12
- Volume
- 2018
- Issue
- 11
- Pages
- 014-014
- ISSN
- 1475-7508 (ISSN-L)
- 1475-7516
- OpenAlex
- W2888247039
- Cited by
- 174
- References
- 3
- FWCI
- 12.26
- Type
- journal article
- Language
- en
- Open access
- bronze
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
