PIRSA:16100068

Prospects for cosmological collider physics

Munchmeyer, M. (2016). Prospects for cosmological collider physics. Perimeter Institute. https://pirsa.org/16100068

Munchmeyer, Moritz. Prospects for cosmological collider physics. Perimeter Institute, Oct. 25, 2016, https://pirsa.org/16100068 

          @misc{ pirsa_PIRSA:16100068,
            doi = {10.48660/16100068},
            url = {https://pirsa.org/16100068},
            author = {Munchmeyer, Moritz},
            keywords = {Cosmology},
            language = {en},
            title = {Prospects for cosmological collider physics},
            publisher = {Perimeter Institute},
            year = {2016},
            month = {oct},
            note = {PIRSA:16100068 see, \url{https://pirsa.org}}
          }

Moritz Munchmeyer

University of Wisconsin–Madison

Talk number
PIRSA:16100068
Collection
Talk Type
Subject
Abstract

If heavy fields are present during inflation, they can leave an imprint in late-time cosmological observables. The main signature of these fields is a small amount of distinctly shaped non-Gaussianity, which if detected, would provide a wealth of information about the particle spectrum of the inflationary Universe. Here we investigate to what extent these signatures can be detected or constrained using futuristic 21-cm surveys. This part of my talk is based on 1610.06559. In the second part of my talk I will discuss how non-adiabatic production of heavy particles, as recently studied in 1606.00513, can generate an interesting and so far unconstrained class of non-Gaussianity in the CMB.