Supersymmetric Majoron inflation

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 ℤ N $$ {\mathbb{Z}}_N $$ 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.

Abstract licence: CC BY

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