Sep 12 – 16, 2016
Europe/Zurich timezone
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Challenges for leptogenesis at the TeV scale

Sep 12, 2016, 3:40 PM
13/2-005 (CERN)



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Invited Contributions Cosmology & Gravitational Waves Cosmology & Gravitational Waves


Enrico Nardi


  • Present circumstantial evidences that seem to favour a scenario of baryogenesis via
    leptogenesis from heavy particle decays
  • New experimental results that could further support this picture in the next future
  • Difficulties for going beyond the level of "circumstantial evidences in favour...".
    General no-go arguments forbidding leptogenesis scales sufficiently low to be directly
    accessible in laboratory experiments.
  • Conditions and loopholes that might allow to circumvent the previous arguments for
    building low scale leptogenesis models


I will review some features of leptogenesis from the decays of heavy particles.
After recalling the most appealing theoretical aspects, I will address the issue
of the main limitations and difficulties for experimental verification. I will then
describe some of the hardest challenges for constructing leptogenesis models
at low scales.

Primary author

Presentation materials