Inflation with the right-handed sneutrino revisited

We consider an extension of νMSSM with an extra U(1) that realizes D-term inflation driven by the right-handed sneutrino. Non-renormalizable terms in the Kähler potential and the superpotential are considered, the latter controlled by a suitable discrete R-symmetry. We find that, for sub-Planckian inflaton values, the predictions of inflationary parameters are compatible with observations, establishing the right-handed sneutrino driven inflation as a viable scenario.