Orateur
Wuhyun sohn
(APC / CNRS)
Description
New heavy particles during inflation can leave imprints in the primordial perturbations and subsequently in the observed CMB anisotropies. This remarkable detection channel allows us to probe new physics at extremely high energies. I present our recent work on the first extensive search for cosmological collider signals with the CMB data. We utilise the publicly available CMB bispectrum estimator code CMB-BEST to study various analytic templates guided by the cosmological bootstrap, providing the most stringent constraints to cosmological collider signals to date.
Author
Wuhyun sohn
(APC / CNRS)
