PIRSA:11090108

Video URL

https://pirsa.org/11090108

Dark Matter Annihilation: From High Redshift to the Galactic Center

Finkbeiner, D. (2011). Dark Matter Annihilation: From High Redshift to the Galactic Center. Perimeter Institute for Theoretical Physics. https://pirsa.org/11090108

Finkbeiner, Doug. Dark Matter Annihilation: From High Redshift to the Galactic Center. Perimeter Institute for Theoretical Physics, Sep. 22, 2011, https://pirsa.org/11090108 

          @misc{ scivideos_PIRSA:11090108,
            doi = {10.48660/11090108},
            url = {https://pirsa.org/11090108},
            author = {Finkbeiner, Doug},
            keywords = {Particle Physics},
            language = {en},
            title = {Dark Matter Annihilation: From High Redshift to the Galactic Center},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2011},
            month = {sep},
            note = {PIRSA:11090108 see, \url{https://scivideos.org/index.php/pirsa/11090108}}
          }

Doug Finkbeiner Harvard University

Talk numberPIRSA:11090108
DOI10.48660/11090108
Source RepositoryPIRSA
Collection
Talk Type Conference
Subject

Abstract

The existence of dark matter is hardly in doubt, yet astrophysicists continue to search in vain for any non-gravitational signals of it. In the case of weakly interacting massive particle (WIMP) models, ongoing annihilation or decay of WIMPs to Standard Model particles could provide observable signals, e.g. as excess gamma rays in the center of the Milky Way or as excess ionization at high redshift. I will present our latest results on the most rigorous constraint from astrophysics: the effect of WIMP annihilation on the ionization history of the Universe, as recorded in the CMB.