Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2006-11-13
AIPConf.Proc.903:677-680,2007
Physics
High Energy Physics
High Energy Physics - Phenomenology
4 pages, 1 figre; to appear in Proceedings of SUSY06, the 14th International Conference on Supersymmetry and the Unification o
Scientific paper
10.1063/1.2735274
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 severely constraining many of the inflation models especially in the case of the gravity-mediated SUSY breaking.
Kawasaki Masahiro
Takahashi Fuminobu
Yanagida Takayuki
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