Abstract
We propose a large class of supergravity models in terms of a single chiral matter superfield, leading to (almost) arbitrary single-field inflationary scalar potentials similar to the F-term in rigid supersymmetry. Those scalar potentials are positively semi-definite (in our approximation), and can preserve supersymmetry at the end of inflation. The only scalar superpartner of inflaton is stabilized by a higher-dimensional term in the Kähler potential. We argue that couplings of the inflaton to other sectors of the particle spectrum do not affect the inflationary dynamics, and briefly discuss reheating of the universe by the inflaton decays.
| Original language | English |
|---|---|
| Pages (from-to) | 1-22 |
| Number of pages | 22 |
| Journal | Journal of High Energy Physics |
| Volume | 2014 |
| Issue number | 12 |
| DOIs | |
| Publication status | Published - 2014 |
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Keywords
- Cosmology of theories beyond the SM
- Supergravity models
ASJC Scopus subject areas
- Nuclear and High Energy Physics
Cite this
Generic scalar potentials for inflation in supergravity with a single chiral superfield. / Ketov, Sergei V.; Terada, Takahiro.
In: Journal of High Energy Physics, Vol. 2014, No. 12, 2014, p. 1-22.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Generic scalar potentials for inflation in supergravity with a single chiral superfield
AU - Ketov, Sergei V.
AU - Terada, Takahiro
PY - 2014
Y1 - 2014
N2 - We propose a large class of supergravity models in terms of a single chiral matter superfield, leading to (almost) arbitrary single-field inflationary scalar potentials similar to the F-term in rigid supersymmetry. Those scalar potentials are positively semi-definite (in our approximation), and can preserve supersymmetry at the end of inflation. The only scalar superpartner of inflaton is stabilized by a higher-dimensional term in the Kähler potential. We argue that couplings of the inflaton to other sectors of the particle spectrum do not affect the inflationary dynamics, and briefly discuss reheating of the universe by the inflaton decays.
AB - We propose a large class of supergravity models in terms of a single chiral matter superfield, leading to (almost) arbitrary single-field inflationary scalar potentials similar to the F-term in rigid supersymmetry. Those scalar potentials are positively semi-definite (in our approximation), and can preserve supersymmetry at the end of inflation. The only scalar superpartner of inflaton is stabilized by a higher-dimensional term in the Kähler potential. We argue that couplings of the inflaton to other sectors of the particle spectrum do not affect the inflationary dynamics, and briefly discuss reheating of the universe by the inflaton decays.
KW - Cosmology of theories beyond the SM
KW - Supergravity models
UR - http://www.scopus.com/inward/record.url?scp=84919598576&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84919598576&partnerID=8YFLogxK
U2 - 10.1007/JHEP12(2014)062
DO - 10.1007/JHEP12(2014)062
M3 - Article
VL - 2014
SP - 1
EP - 22
JO - Journal of High Energy Physics
JF - Journal of High Energy Physics
SN - 1126-6708
IS - 12
ER -