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arXiv · 1505.02235

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

Hiroyuki Abe·Yutaka Sakamura·Yusuke Yamada
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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 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 a special class of the massive DBI action.

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Hiroyuki Abe, Yutaka Sakamura, Yusuke Yamada. 2015-05-09. Massive vector multiplet inflation with Dirac-Born-Infeld type action. https://doi.org/10.1103/physrevd.91.125042

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