http://arxiv.org/abs/2107.13000
We point out a previously unnoticed symmetry of many important cosmological observables and show that a cosmological model with a “mirror world” dark sector can exploit this symmetry to completely eliminate the Hubble tension. Our work motivates searches for both a more detailed particle physics model that satisfies laboratory constraints and a means of increasing the cosmic photon scattering rate that respects observational bounds on the primordial helium abundance.
F. Cyr-Racine, F. Ge and L. Knox
Thu, 29 Jul 21
30/59
Comments: 4 pages + references, 2 figures
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