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2021

Self-interacting neutrinos as a solution to the Hubble tension?

Das, Anirban

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Self-interaction among the neutrinos in the early Universe has been proposed as a solution to the Hubble tension, a discrepancy between the measured values of the Hubble constant from CMB and low-redshift data.

However, flavor-universal neutrino self-interaction is highly constrained by Big Bang Nucleosynthesis and other laboratory experiments such as, tau and K-meson decay, double-neutrino beta decay etc.
We study the cosmology when only one or two neutrino states are self-interacting.
Such flavor-specific interactions are less constrained by the laboratory experiments.

Self-interacting neutrinos as a solution to the Hubble tension? · Around

Built on

A. G. Riess, S. Casertano, W. Yuan, L. M. Macri, and D. Scolnic, Large Magellanic Cloud Cepheid Standards Provide a 1% Foundation for the Determination of the Hubble Constant and Stronger Evidence for Physics Beyond LambdaCDM
Original
1903
Earlier work this paper cites.
N. Blinov, K. J. Kelly, G. Z. Krnjaic, and S. D. McDermott, Constraining the Self-Interacting Neutrino Interpretation of the Hubble Tension
Original
1905
Earlier work this paper cites.
W. L. Freedman, B. F. Madore, D. Hatt, T. J. Hoyt, I.-S. Jang, R. L. Beaton, C. R. Burns, M. G. Lee, A. J. Monson, J. R. Neeley, M. M. Phillips, J. A. Rich, and M. Seibert, The Carnegie-Chicago Hubble Program. VIII. An Independent Determination of the Hubble Constant Based on the Tip of the Red Giant Branch
Original
1907
Earlier work this paper cites.

Similar

K.-F. Lyu, E. Stamou, and L.-T. Wang, Self-interacting neutrinos: solution to Hubble tension versus experimental constraints
Original
2004
Cited alongside, same era.
S. Bashinsky and U. Seljak, Neutrino perturbations in CMB anisotropy and matter clustering
2004
Cited alongside, same era.
A. Das and S. Ghosh, Flavor-specific interaction favors strong neutrino self-coupling in the early universe
Original
2011
Cited alongside, same era.

Then

F.-Y. Cyr-Racine and K. Sigurdson, Limits on Neutrino-Neutrino Scattering in the Early Universe
Original
2014
Later among the works it cites.
A. G. Riess, S. Casertano, W. Yuan, L. Macri, J. Anderson, J. W. MacKenty, J. B. Bowers, K. I. Clubb, A. V. Filippenko, D. O. Jones, and B. E. Tucker, New Parallaxes of Galactic Cepheids from Spatially Scanning the Hubble Space Telescope: Implications for the Hubble Constant
Original
2018
Later among the works it cites.
E. Di Valentino, O. Mena, S. Pan, L. Visinelli, W. Yang, A. Melchiorri, D. F. Mota, A. G. Riess, and J. Silk, In the realm of the Hubble tension—a review of solutions
Original
2021
Closest in time.

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