A-term inflation and the smallness of the neutrino masses

Details A-term inflation and the smallness of the neutrino masses A-term inflation and the smallness of the neutrino masses

2006-08-11

arxiv.org/abs/hep-ph/0608138v2

JCAP 0707:018,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 pages, 1 figure, uses JHEP3.cls, minor modifications, final version accepted for publication in JCAP

Scientific paper

10.1088/1475-7516/2007/07/018

The smallness of the neutrino masses may be related to inflation. The minimal supersymmetric Standard Model (MSSM) with small Dirac neutrino masses already has all the necessary ingredients for a successful inflation. In this model the inflaton is a gauge-invariant combination of the right-handed sneutrino, the slepton, and the Higgs field, which generate a flat direction suitable for inflation if the Yukawa coupling is small enough. In a class of models, the observed microwave background anisotropy and the tilted power spectrum are related to the neutrino masses.

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