170 citations · 676 across the 24 of their papers we have counts for
8 papers · 1 filter
No room to hide: implications of cosmic-ray upscattering for GeV-scale dark matter
James Alvey, Torsten Bringmann, Helena Kolesova
The irreducible upscattering of cold dark matter by cosmic rays opens up the intriguing possibility of detecting even light dark matter in conventional direct detection experiments…
Cosmic Neutrino Background Detection in Large-Neutrino-Mass Cosmologies
James Alvey, Miguel Escudero, Nashwan Sabti +1
The Cosmic Neutrino Background (CNB) is a definite prediction of the standard cosmological model and its direct discovery would represent a milestone in cosmology and neutrino phys…
Addendum: Refined bounds on MeV-scale thermal dark sectors from BBN and the CMB
Nashwan Sabti, James Alvey, Miguel Escudero +2
Very recently, the LUNA collaboration has reported a new measurement of the reaction rate, which plays an important role in the prediction of the primord…
New Constraints on the Mass of Fermionic Dark Matter from Dwarf Spheroidal Galaxies
James Alvey, Nashwan Sabti, Victoria Tiki +7
Dwarf spheroidal galaxies are excellent systems to probe the nature of fermionic dark matter due to their high observed dark matter phase-space density. In this work, we review, re…
The Axion Quality Problem: Global Symmetry Breaking and Wormholes
James Alvey, Miguel Escudero
Continuous global symmetries are expected to be broken by gravity, which can lead to important phenomenological consequences. A prime example is the threat that this poses to the v…
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,…
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…