769 citations · 5.6k across the 83 of their papers we have counts for
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astro-ph.CO2013★ 136 cited
BBN And The CMB Constrain Light, Electromagnetically Coupled WIMPs
Kenneth M. Nollett, Gary Steigman
(Abridged) In the presence of a light WIMP (< 30 MeV), there are degeneracies among the nature of the WIMP, its couplings to standard model particles, its mass m_chi, and the numbe…
astro-ph.CO2013★ 75 cited
Equivalent Neutrinos, Light WIMPs, and the Chimera of Dark Radiation
Gary Steigman
According to conventional wisdom, in the standard model (SM) of particle physics and cosmology the effective number of neutrinos is Neff=3 (more precisely, 3.046). In extensions of…