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arxiv 1307.1137 v2 pith:RVDJTUPP submitted 2013-07-03 hep-th gr-qchep-ph

On the Starobinsky Model of Inflation from Supergravity

classification hep-th gr-qchep-ph
keywords modelstarobinskysupergravityequivalentpotentialcompensatordescriptioninflation
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We discuss how the higher-derivative Starobinsky model of inflation originates from N=1 supergravity. It is known that, in the old-minimal supergravity description written by employing a chiral compensator in the superconformal framework, the Starobinsky model is equivalent to a no-scale model with F-term potential. We show that the Starobinsky model can also be originated within the so-called new-minimal supergravity, where a linear compensator superfield is employed. In this formulation, the Starobinsky model is equivalent to standard supergravity coupled to a massive vector multiplet whose lowest scalar component plays the role of the inflaton and the vacuum energy is provided by a D-term potential. We also point out that higher-order corrections to the supergravity Lagrangian represent a threat to the Starobinsky model as they can destroy the flatness of the inflaton potential in its scalar field equivalent description.

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  1. Higgs boson mass and thermal wino dark matter from Starobinsky supergravity with the MSSM

    hep-ph 2026-07 conditional novelty 6.0

    Starobinsky supergravity coupled to the MSSM links the CMB inflationary scale to the Higgs boson mass (~125 GeV) and predicts thermal wino dark matter at ~3 TeV, testable at future colliders and direct detection experiments.