Supergravity Inflation Free from Harmful Relics

Phys.Rev.D68:043502,2003 We present a realistic supergravity inflation model which is free from the overproduction of potentially dangerous relics in cosmology, namely moduli and gravitinos which can lead to the inconsistencies with the predictions of baryon asymmetry and nucleosynthesis. The radiat...

Full description

Saved in:
Bibliographic Details
Main Authors Greene, Patrick B, Kadota, Kenji, Murayama, Hitoshi
Format Journal Article
LanguageEnglish
Published 30.08.2002
Subjects
Physics - High Energy Physics - Phenomenology
Online AccessGet full text

Cover

More Information
Summary:Phys.Rev.D68:043502,2003 We present a realistic supergravity inflation model which is free from the overproduction of potentially dangerous relics in cosmology, namely moduli and gravitinos which can lead to the inconsistencies with the predictions of baryon asymmetry and nucleosynthesis. The radiative correction turns out to play a crucial role in our analysis which raises the mass of supersymmetry breaking field to intermediate scale. We pay a particular attention to the non-thermal production of gravitinos using the non-minimal Kahler potential we obtained from loop correction. This non-thermal gravitino production however is diminished because of the relatively small scale of inflaton mass and small amplitudes of hidden sector fields.
Bibliography:UCB-PTH-02/37,LBNL-51431,FERMILAB-Pub-02/300
DOI:10.48550/arxiv.hep-ph/0208276