2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/139408We address an issue what kind of tuning realizes a flat potential for inflaton in supergravity. We restrict ourselves to the case that inflationary dynamics is not affected by separate supersymmetry-breaking effects, and consider examples of a single chiral superfield as an inflaton with its vacuum of the vanishing cosmological constant. The examples potentially include the cases of Polonyi field or right-handed sneutrino as an inflaton.11 pagesHigh Energy Physics - Phenomenologytext