Neutrino interactions from the cosmos

  • Oct. 14, 2021, 2:30 pm US/Central
  • Ivan Esteban, Ohio State U.

Do neutrinos have sizable self interactions? They might. As laboratory constraints are weak, strong effects can change our picture of astrophysical and cosmological environments. In this talk, I will explore the rich physics introduced by neutrino self-interactions throughout the Universe. I will discuss how a multidisciplinary approach, ranging from precision cosmology to neutrino telescopes, is needed to tackle this problem. This leads to unique signatures that will be tested in next-generation observations, with potential links to neutrino mass measurements and the Hubble tension.