10 papers
Sensitivity of Next-Generation CMB Surveys to Neutrinos and Other Light Relics
Cynthia Trendafilova, Srinivasan Raghunathan, Benjamin Wallisch +33
Neutrinos and other light relics leave characteristic imprints in the cosmic microwave background anisotropies, making their observation a sensitive probe of the particle content a…
Can a Breakdown of Hawking Evaporation Open a New Mass Window for Primordial Black Holes as Dark Matter?
Gabriele Montefalcone, Dan Hooper, Katherine Freese +3
Semi-classical Hawking evaporation is expected to break down at some point in a black hole's evolution as the effects of quantum gravity become important. In particular, it has bee…
Model-Independent Dark Energy Measurements from DESI DR2 and Planck 2015 Data
Yun Wang, Katherine Freese
Using DESI DR2 baryon acoustic oscillation (BAO) distance measurements and Planck cosmic microwave background distance priors, we have measured the dark energy density an…
Thermal Gravitons from Warm Inflation
Gabriele Montefalcone, Barmak Shams Es Haghi, Tao Xu +1
In warm inflation (WI), the persistent thermal bath that is sustained by dissipative interactions with the inflaton field produces a stochastic background of gravitational waves (G…
Free-Streaming Neutrinos and Their Phase Shift in Current and Future CMB Power Spectra
Gabriele Montefalcone, Benjamin Wallisch, Katherine Freese
The cosmic neutrino background and other light relics leave distinct imprints in the cosmic microwave background anisotropies through their gravitational influence. Since neutrinos…
Minimal Dark Matter Freeze-in with Low Reheating Temperatures and Implications for Direct Detection
Kimberly K. Boddy, Katherine Freese, Gabriele Montefalcone +1
We investigate the influence of the reheating temperature of the visible sector on the freeze-in dark matter (DM) benchmark model for direct detection experiments, where DM product…