Abstract
We investigate the inflation model with a massive vector multiplet in a case that the action of the vector multiplet is extended to the Dirac-Born-Infeld (DBI) type one. We show the massive DBI action in four-dimensional N=1 supergravity and find that the higher-order corrections associated with the DBI extension make the scalar potential flat with a simple choice of the matter couplings. We also discuss the DBI extension of the new minimal Starobinsky model and find that it is dual to a special class of the massive DBI action.
Original language | English |
---|---|
Article number | 125042 |
Journal | Physical Review D - Particles, Fields, Gravitation and Cosmology |
Volume | 91 |
Issue number | 12 |
DOIs | |
Publication status | Published - 2015 Jun 30 |
ASJC Scopus subject areas
- Nuclear and High Energy Physics