HET seminar

"Leptogenesis and Gravity Waves from a SUSY-breaking Phase Transition"

Presented by Jim Cline, Benoit Laurent, Jean-Samuel Roux, McGill

Thursday, August 31, 2023, 11:00 am — Small Seminar Room, Bldg. 510

Abstract: It has been shown that supersymmetry breaking in a hidden sector at the PeV scale can lead to a distinctive strong first order phase transition, producing gravity waves that could be observed in upcoming experiments. We develop this idea, proposing a concrete model with gauge-mediated SUSY breaking, that can also give successful leptogenesis at the phase transition. A novel mechanism of neutrino mass generation at one loop arises in the model. We show that significant production of primordial black holes can take place at the phase transition. https://arxiv.org/abs/2211.00422

Hosted by: Peter Denton

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