Impacts of supersymmetric higher derivative terms on inflation models in supergravity

Shuntaro Aoki, Yusuke Yamada

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    16 Citations (Scopus)

    Abstract

    We show the effects of supersymmetric higher derivative terms on inflation models in supergravity. The results show that such terms generically modify the effective kinetic coefficient of the inflaton during inflation if the cut off scale of the higher derivative operators is sufficiently small. In such a case, the η-problem in supergravity does not occur, and we find that the effective potential of the inflaton generically becomes a power type potential with a power smaller than two.

    Original languageEnglish
    Article number020
    JournalJournal of Cosmology and Astroparticle Physics
    Volume2015
    Issue number7
    DOIs
    Publication statusPublished - 2015 Jul 1

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    Keywords

    • cosmology of theories beyond the SM
    • inflation
    • supersymmetry and cosmology

    ASJC Scopus subject areas

    • Astronomy and Astrophysics

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