PIRSA:26040087

Video URL

https://pirsa.org/26040087

Cosmic Inflation and the Ultralight-Superheavy Dark Matter Connection

McDonough, E. (2026). Cosmic Inflation and the Ultralight-Superheavy Dark Matter Connection. Perimeter Institute for Theoretical Physics. https://pirsa.org/26040087

McDonough, Evan. Cosmic Inflation and the Ultralight-Superheavy Dark Matter Connection. Perimeter Institute for Theoretical Physics, Apr. 10, 2026, https://pirsa.org/26040087 

          @misc{ scivideos_PIRSA:26040087,
            doi = {10.48660/26040087},
            url = {https://pirsa.org/26040087},
            author = {McDonough, Evan},
            keywords = {Particle Physics},
            language = {en},
            title = {Cosmic Inflation and the Ultralight-Superheavy Dark Matter Connection},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2026},
            month = {apr},
            note = {PIRSA:26040087 see, \url{https://scivideos.org/pirsa/26040087}}
          }

Evan McDonough University of Winnipeg

Talk numberPIRSA:26040087
DOI10.48660/26040087
Source RepositoryPIRSA
Collection
Talk Type Scientific Series
Subject

Abstract

The range of possible masses of particle dark matter spans over many orders of magnitude. The extremes of the mass range -- so-called ''superheavy'' and ''ultralight'' dark matter candidates -- are increasingly attracting attention due to their novel phenomenology and new developments in production mechanisms. In this talk I will discuss the complementary nature of superheavy and ultralight dark matter, starting from the production during cosmic inflation, using examples from the string theory axiverse and from a QCD-like dark sector.