Supersymmetric Inflation With Constraints on Superheavy Neutrino Masses

Details Supersymmetric Inflation With Constraints on Superheavy Neutrino Masses Supersymmetric Inflation With Constraints on Superheavy Neutrino Masses

1996-08-07

arxiv.org/abs/hep-ph/9608256v3

Phys.Rev.D56:1324-1327,1997

Physics

High Energy Physics

High Energy Physics - Phenomenology

The title has been changed to better reflect the content, the formulas now more accurate, and the reasons for the lack of SUGR

Scientific paper

10.1103/PhysRevD.56.1324

We consider a supersymmetric model of inflation in which the primordial density fluctuations are nearly scale invariant (the spectral index n is approximately 0.98) with amplitude proportional to (M/M_{Planck})^2, where M ~ 10^{16} GeV denotes the scale of the gauge symmetry breaking associated with inflation. The 60 or so e-foldings take place when all relevant scales are close to M, which helps suppress supergravity corrections. The gravitino and baryogenesis (via leptogenesis) constraints help determine the two heaviest right handed neutrino masses to be approximately 2 x 10^{13} GeV and 6 x 10^9 GeV.

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