Conveners
DM IV
- Brooks Thomas (Colorado College)
- Brooks Thomas
In this talk, we use planetary and asteroid data to set new model-independent constraints on dark matter and cosmic neutrinos. See https://arxiv.org/abs/2107.04038 and https://arxiv.org/abs/2112.07674 for related previous works.
In this talk, we explore the consequences of neutrino self-interactions for the production of sterile neutrino dark matter. We present how neutrino self-interactions allow keV sterile neutrinos to make up all the dark matter while safely evading all current experimental bounds. In addition, we revisit and update the constraints that supernova neutrino observations impose on the mass scale and...
Ultralight bosonic dark matter has come under increasing scrutiny as a dark matter candidate that can resolve numerous puzzles in astronomical observation. We demonstrate that high-precision measurements of time variation in the frequency ratios of atomic transitions achieves leading sensitivity to ultralight vector portal dark matter. These bounds are the first laboratory-based bounds on this...
As many of us know, the cosmic microwave background has a black-body spectrum. This is confirmed by COBE-FIRAS data three decades ago with exact measurement and tiny error bars.
However, the existence of new physics, such as the photon-dark photon oscillation with non-zero kinetic mixing, will distort the black body spectrum. Based on this character, and the fact that the deviation of CMB...
