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

Hiroyuki Abe, Yutaka Sakamura, Yusuke Yamada

    Research output: Contribution to journalArticlepeer-review

    13 Citations (Scopus)


    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 languageEnglish
    Article number125042
    JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
    Issue number12
    Publication statusPublished - 2015 Jun 30

    ASJC Scopus subject areas

    • Nuclear and High Energy Physics

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