170 citations · 676 across the 24 of their papers we have counts for
4 papers · 1 filter
Refined Bounds on MeV-scale Thermal Dark Sectors from BBN and the CMB
Nashwan Sabti, James Alvey, Miguel Escudero +2
New light states thermally coupled to the Standard Model plasma alter the expansion history of the Universe and impact the synthesis of the primordial light elements. In this work,…
Improved BBN Constraints on the Variation of the Gravitational Constant
James Alvey, Nashwan Sabti, Miguel Escudero +1
Big Bang Nucleosynthesis (BBN) is very sensitive to the cosmological expansion rate. If the gravitational constant took a different value during the nucleosynthesis epoch than…
Light Dark Matter from Inelastic Cosmic Ray Collisions
James Alvey, Miguel Campos, Malcolm Fairbairn +1
Direct detection experiments relying on nuclear recoil signatures lose sensitivity to sub-GeV dark matter for typical galactic velocities. This sensitivity is recovered if there ex…
Linking Scalar Dark Matter and Neutrino Masses with IceCube 170922A
J. B. G. Alvey, M. Fairbairn
Two of the key unresolved issues facing Standard Model physics are (i) the appearance of a small but non-zero neutrino mass, and, (ii) the missing mass problem in the Universe. The…