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arXiv · 1606.00431

Supersymmetric Sneutrino-Higgs Inflation

Rehan Deen·Burt A. Ovrut·Austin Purves
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Abstract

It is shown that in the phenomenologically realistic supersymmetric $B-L$ MSSM theory, a linear combination of the neutral, up Higgs field with the third family left-and right-handed sneutrinos can play the role of the cosmological inflaton. Assuming that supersymmetry is softly broken at a mass scale of order $10^{13}~\mathrm{GeV}$, the potential energy associated with this field allows for 60 e-foldings of inflation with the cosmological parameters being consistent with all Planck2015 data. The theory does not require any non-standard coupling to gravity and the physical fields are all sub-Planckian during the inflationary epoch. It will be shown that there is a "robust" set of initial conditions which, in addition to satisfying the Planck data, simultaneously are consistent with all present LHC phenomenological requirements.

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Rehan Deen, Burt A. Ovrut, Austin Purves. 2016-06-01. Supersymmetric Sneutrino-Higgs Inflation. https://doi.org/10.1016/j.physletb.2016.09.059

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