Leptogenesis from composite singlets
arXiv:2209.08386 · doi:10.1103/PhysRevD.110.056051
Abstract
We argue that dual singlets accommodate the thermal leptogenesis in the context of metastable supersymmetry breaking. This framework suggests that the reheating temperature is as low as O(10^4) GeV, and besides the neutrino masses, solely induced from the dual fermions, are present at O(0.1) eV. We also expect that the unstable gravitino, though long-lived, may cause a clear signal of the neutrino flux at O(10) MeV.
arXiv comment23 pages, Appendices included
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