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Monday, March 9th 2015

12:15 pm:

Motivated by the coincidence between the Hubble scale during inflation and the typical see-saw neutrino mass scale, we present a supergravity model where the inflaton is identified with a linear combination of right-handed sneutrino fields. The model accommodates an inflaton potential that is flatter than quadratic chaotic inflation, resulting in a measurable but not yet ruled out tensor-to-scalar ratio. The evolution of the sneutrino fields after inflation carries a lepton charge that can be the origin of the observed baryon asymmetry of the universe. This talk is based on the preprint arXiv:1501.06560

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