Events Calendar
A Symmetry of Cosmological Observables, and a High Hubble Constant as an Indicator of a Mirror World Dark Sector
Tuesday August 31, 2021
| 2:00 pm
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Presenter: | Francis-Yan Cyr-Racine, UNM |
|---|---|---|
| Series: | Nuclear, Particle, Astroparticle and Cosmology (NUPAC) Seminars | |
| Abstract: | 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. | |
| Host: | Francis-Yan Cyr-Racine | |
| Location: | PAIS-3205, PAIS | |
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