3 papers
astro-ph.CO2025
Monodromic Dark Energy and DESI
Samuel Goldstein, Marco Celoria, Fabian Schmidt
Recent baryon acoustic oscillation (BAO) measurements from the Dark Energy Spectroscopic Instrument (DESI) collaboration have renewed interest in dynamical dark energy models, part…
astro-ph.CO2024
Massive-ish Particles from Small-ish Scales: Non-Perturbative Techniques for Cosmological Collider Physics from Large-Scale Structure Surveys
Samuel Goldstein, Oliver H. E. Philcox, J. Colin Hill +1
Massive particles produced during inflation impact soft limits of primordial correlators. Searching for these signatures presents an exciting opportunity to uncover the particle sp…
astro-ph.CO2023
Consistently constraining with the squeezed lensing bispectrum using consistency relations
Samuel Goldstein, Oliver H. E. Philcox, J. Colin Hill +2
We introduce a non-perturbative method to constrain the amplitude of local-type primordial non-Gaussianity () using squeezed configurations of the CMB lensing convergen…