Massive vector multiplet inflation with Dirac-Born-Infeld type action

@article{Abe2015MassiveVM,
  title={Massive vector multiplet inflation with Dirac-Born-Infeld type action},
  author={Hiroyuki Abe and Yutaka Sakamura and Yusuke Yamada},
  journal={Physical Review D},
  year={2015},
  volume={91},
  pages={125042}
}
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 4 dimensional ${\cal N}=1$ 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… 

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