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The Hydrogen Mixing Portal as a Novel Mechanism for Colder Baryons in 21 cm Cosmology

In this talk I will propose that hydrogen is cooled during the dark ages on characteristic timescales t ~ 100 million years due a dimension-12 operator generated at energies E ~ hbar / 10^-28 seconds which effectively causes hydrogen to disappear during the dark ages and reappear during reionization. The particle physics underlying the scenario is simple, natural, and fits into established paradigms. The enormous deviations from standard cosmology appear not to be constrained, but are falsifiable in multiple ways with upcoming and proposed experiments.

Host: David Curtin
Event series  THEP Events