30 citations · 98 across the 8 of their papers we have counts for
8 papers
Evaluating Lyman- Constraints for General Dark-Matter Velocity Distributions: Multiple Scales and Cautionary Tales
Keith R. Dienes, Fei Huang, Jeff Kost +2
The Lyman- absorption spectrum associated with photons traversing the intergalactic medium allows us to probe the linear matter power spectrum down to relatively small distance…
Massless Preheating and Electroweak Vacuum Metastability
Jeff Kost, Chang Sub Shin, Takahiro Terada
Current measurements of Standard Model parameters suggest that the electroweak vacuum is metastable. This metastability has important cosmological implications, because large fluct…
Extracting Dark-Matter Velocities from Halo Masses: A Reconstruction Conjecture
Keith R. Dienes, Fei Huang, Jeff Kost +2
Increasing attention has recently focused on non-traditional dark-matter production mechanisms which result in primordial dark-matter velocity distributions with highly non-thermal…
Deciphering the Archaeological Record: Cosmological Imprints of Non-Minimal Dark Sectors
Keith R. Dienes, Fei Huang, Jeff Kost +2
Many proposals for physics beyond the Standard Model give rise to a dark sector containing many degrees of freedom. In this work, we explore the cosmological implications of the no…
Enlarging the Space of Viable Inflation Models: A Slingshot Mechanism
Keith R. Dienes, Jeff Kost, Brooks Thomas
The viability of a given model for inflation is determined not only by the form of the inflaton potential, but also by the initial inflaton field configuration. In many models, fie…
Deformation of Axion Potentials: Implications for Spontaneous Baryogenesis, Dark Matter, and Isocurvature Perturbations
Kyu Jung Bae, Jeff Kost, Chang Sub Shin
We show that both the baryon asymmetry of the universe and dark matter (DM) can be accounted for by the dynamics of a single axion-like field. In this scenario, the observed baryon…