(1) Presentation(s)
Jeu. 11/03/2021 14:00 webinar HEURTIER Lucien (IPPP Durham) Cosmological Imprint and Phenomenology of Very Heavy Dark-Matter Particles (LUPM/Particules, Astroparticules, Cosmologie : Théorie) The dark sector of our universe might very well be constituted of particles with masses as large as the Exa-electronvolt (10^9 GeV). I will discuss in this talk how such a heavy dark-matter candidate might be populated in the early universe and how one could hope to detect it nowadays in astroparticle searches experiments. In particular, I will discuss the possible imprint of such models on the dynamics of cosmic inflation, but also how such a heavy candidate might be metastable and decay in the present universe, leading to detectable signals in the form of ultra-high energy cosmic rays. Pour plus d'informations, merci de contacter Lavalle J. |