Inflation in supergravity without Kähler potential

Shuntaro Aoki, Yusuke Yamada

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

We propose a new class of inflation models in supergravity with higher derivative terms. In those models, the Kähler potential does not contain the inflaton multiplet, but a supersymmetric derivative term does. In the models, inflation is effectively driven by a single scalar field with a standard kinetic term and a scalar potential. Remarkably, the so-called η problem does not exist in our models.

Original languageEnglish
Article number127701
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume90
Issue number12
DOIs
Publication statusPublished - 2014 Dec 3

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

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