305 citations · 2.5k across the 92 of their papers we have counts for
10 papers · 1 filter
Non-Gaussianity Beyond the Scalar Sector: A Search for Tensor and Mixed Tensor-Scalar Bispectra with Planck Data
Oliver H. E. Philcox, Maresuke Shiraishi
Primordial gravitational waves could be non-Gaussian, just like primordial scalar perturbations. Although the tensor two-point function has thus-far remained elusive, the three-poi…
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…
The Impact of Non-Gaussian Primordial Tails on Cosmological Observables
William R. Coulton, Oliver H. E. Philcox, Francisco Villaescusa-Navarro
Whilst current observational evidence favors a close-to-Gaussian spectrum of primordial perturbations, there exist many models of the early Universe that predict this distribution…
Suppression without Thawing: Constraining Structure Formation and Dark Energy with Galaxy Clustering
Shi-Fan Chen, Mikhail M. Ivanov, Oliver H. E. Philcox +1
We present a new perturbative full-shape analysis of BOSS galaxy clustering data, including the full combination of the galaxy power spectrum and bispectrum multipoles, baryon acou…
Too Hot to Handle: Searching for Inflationary Particle Production in Planck Data
Oliver H. E. Philcox, Soubhik Kumar, J. Colin Hill
Non-adiabatic production of massive particles is a generic feature of many inflationary mechanisms. If sufficiently massive, these particles can leave features in the cosmic microw…
A Parameter-Masked Mock Data Challenge for Beyond-Two-Point Galaxy Clustering Statistics
2pt Collaboration, Elisabeth Krause, Yosuke Kobayashi +23
The last few years have seen the emergence of a wide array of novel techniques for analyzing high-precision data from upcoming galaxy surveys, which aim to extend the statistical a…