Gravitino overproduction in inflaton decay

Masahiro Kawasaki, Fuminobu Takahashi, T. T. Yanagida

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

We show that the gravitino-overproduction problem is prevalent among inflation models in supergravity. An inflaton field generically acquires (effective) non-vanishing auxiliary field, if the Kahler potential is non-minimal. The inflaton field then decays into a pair of the gravitinos, thereby constraining many of the inflation models severely especially in the case of the gravity-mediated SUSY breaking.

Original languageEnglish
Title of host publicationSUSY06
Subtitle of host publication14th International Conference on Supersymmetry and the Unification of Fundamental Interactions
Pages677-680
Number of pages4
DOIs
Publication statusPublished - 2007
EventSUSY06: 14th International Conference on Supersymmetry and the Unification of Fundamental Interactions - Irvine, CA, United States
Duration: 2006 Jun 122006 Jun 17

Publication series

NameAIP Conference Proceedings
Volume903
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

OtherSUSY06: 14th International Conference on Supersymmetry and the Unification of Fundamental Interactions
CountryUnited States
CityIrvine, CA
Period06/6/1206/6/17

Keywords

  • Gravitino
  • Inflation
  • Supergravity

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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  • Cite this

    Kawasaki, M., Takahashi, F., & Yanagida, T. T. (2007). Gravitino overproduction in inflaton decay. In SUSY06: 14th International Conference on Supersymmetry and the Unification of Fundamental Interactions (pp. 677-680). (AIP Conference Proceedings; Vol. 903). https://doi.org/10.1063/1.2735274