Strong Thermal Leptogenesis and Absolute Neutrino Mass Scale

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• Pasquale Di Bari (Southampton University)
• Wednesday 26 March 2014, 13:30-14:30
• Small Lecture Theatre (S06, Poynting [R13]).

If you have a question about this talk, please contact Prof Ian Kenyon.

Leptogenesis provides the most attractive explanation of the matter-antimatter asymmetry of the Universe. It relies on the minimal see-saw mechanism where new very heavy RH neutrinos are added to the SM. The main problem faced by leptogenesis is testability. In my talk I will discuss how imposing the final asymmetry is made independent of the initial conditions (“strong thermal leptogenesis” condition). This favours a lightest neutrino mass greater than about 10 meV, a constraint that will be tested in future years with cosmological observations. I will also discuss a more constrained, SO(10) inspired scenario, where the condition for successful strong thermal leptogenesis leads to quite definite predictions for all the low energy neutrino parameters.

This talk is part of the Particle Physics Seminars series.

This talk is included in these lists:

• Bham Talks
• Particle Physics Seminars
• Small Lecture Theatre (S06, Poynting [R13])
• What's on in Physics?

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