365 citations · 2k across the 48 of their papers we have counts for
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Protecting the Axion with Local Baryon Number
Michael Duerr, Kai Schmidt-Hoberg, James Unwin
The Peccei-Quinn (PQ) solution to the Strong CP Problem is expected to fail unless the global symmetry U(1) is protected from Planck-scale operators up to high mass di…
Dark Matter Freeze-out During Matter Domination
Saleh Hamdan, James Unwin
We highlight the general scenario of dark matter freeze-out whilst the energy density of the universe is dominated by a decoupled non-relativistic species. Decoupling during matter…
Symmetric and Asymmetric Reheating
Edward Hardy, James Unwin
We study models in which the inflaton is coupled to two otherwise decoupled sectors, and the effect of preheating and related processes on their energy densities during the evoluti…
Superheavy Thermal Dark Matter and Primordial Asymmetries
Joseph Bramante, James Unwin
The early universe could feature multiple reheating events, leading to jumps in the visible sector entropy density that dilute both particle asymmetries and the number density of f…