Abstract
We propose supersymmetric Majoron inflation in which the Majoron field Φ responsible for generating right-handed neutrino masses may also be suitable for giving low scale “hilltop” inflation, with a discrete lepton number \( {\mathbb{Z}}_N \) spontaneously broken at the end of inflation, while avoiding the domain wall problem. In the framework of non-minimal supergravity, we show that a successful spectral index can result with small running together with small tensor modes. We show that a range of heaviest right-handed neutrino masses can be generated, m N ∼ 101 − 1016 GeV, consistent with the constraints from reheating and domain walls.
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King, S.F., Ludl, P.O. Supersymmetric Majoron inflation. J. High Energ. Phys. 2017, 174 (2017). https://doi.org/10.1007/JHEP03(2017)174
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DOI: https://doi.org/10.1007/JHEP03(2017)174