PIRSA:11110060

A WIMPy Baryogenesis Miracle

Shuve, B. (2011). A WIMPy Baryogenesis Miracle. Perimeter Institute. https://pirsa.org/11110060

Shuve, Brian. A WIMPy Baryogenesis Miracle. Perimeter Institute, Nov. 15, 2011, https://pirsa.org/11110060 

          @misc{ pirsa_PIRSA:11110060,
            doi = {10.48660/11110060},
            url = {https://pirsa.org/11110060},
            author = {Shuve, Brian},
            keywords = {Particle Physics},
            language = {en},
            title = {A WIMPy Baryogenesis Miracle},
            publisher = {Perimeter Institute},
            year = {2011},
            month = {nov},
            note = {PIRSA:11110060 see, \url{https://pirsa.org}}
          }

Brian Shuve

Harvey Mudd College

Talk number
PIRSA:11110060
Collection
Talk Type
Subject
Abstract
We propose models of symmetric WIMP dark matter in which dark matter annihilations generate the baryon asymmetry. We call this mechanism "WIMPy baryogenesis". This provides a dynamical connection between the late-time abundances of both dark matter and baryons. We construct explicit models of leptogenesis and baryogenesis at the weak scale, and find the "miraculous" result that, for order one couplings and weak scale masses for any new fields, the baryon asymmetry and dark matter relic density from WIMPy baryogenesis match the observed values. We also discuss implications for the LHC and dark matter detection experiments.