462 citations · 3.4k across the 55 of their papers we have counts for
4 papers · 1 filter
Thermal axion constraints in non-standard thermal histories
Daniel Grin, Tristan Smith, Marc Kamionkowski
There is no direct evidence for radiation domination prior to big-bang nucleosynthesis, and so it is useful to consider how constraints to thermally-produced axions change in non-s…
Axion constraints in non-standard thermal histories
Daniel Grin, Tristan L. Smith, Marc Kamionkowski
It is usually assumed that dark matter is produced during the radiation dominated era. There is, however, no direct evidence for radiation domination prior to big-bang nucleosynthe…
A Telescope Search for Decaying Relic Axions
Daniel Grin, Giovanni Covone, Jean-Paul Kneib +3
A search for optical line emission from the two-photon decay of relic axions was conducted in the galaxy clusters Abell 2667 and 2390, using spectra from the VIMOS (Visible Multi-O…
Lower Limit to the Scale of an Effective Theory of Gravitation
R. R. Caldwell, Daniel Grin
We consider a linearized, effective quantum theory of gravitation in which gravity weakens at energies higher than ~10^-3 eV in order to accommodate the apparent smallness of the c…