Abstract
We point out that the inflaton spontaneously decays into any gauge bosons and gauginos via the super-Weyl, Kähler and sigma-model anomalies in supergravity, once the inflaton acquires a non-vanishing vacuum expectation value. In particular, in the dynamical supersymmetry breaking scenarios, the inflaton necessarily decays into the supersymmetry breaking sector, if the inflaton mass is larger than the dynamical scale. This generically causes the overproduction of the gravitinos, which severely constrains the inflation models.
| Original language | English |
|---|---|
| Pages (from-to) | 236-240 |
| Number of pages | 5 |
| Journal | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics |
| Volume | 658 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 2008 Jan 10 |
ASJC Scopus subject areas
- Nuclear and High Energy Physics
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Endo, M., Takahashi, F., & Yanagida, T. T. (2008). Anomaly-induced inflaton decay and gravitino-overproduction problem. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 658(5), 236-240. https://doi.org/10.1016/j.physletb.2007.09.019