Abstract
We propose new supergravity models describing chaotic Linde- and Starobinsky-like inflation in terms of a single chiral superfield. The key ideas to obtain a positive vacuum energy during large field inflation are (i) stabilization of the real or imaginary partner of the inflaton by modifying a Kähler potential, and (ii) use of the crossing terms in the scalar potential originating from a polynomial superpotential. Our inflationary models are constructed by starting from the minimal Kähler potential with a shift symmetry, and are extended to the no-scale case. Our methods can be applied to more general inflationary models in supergravity with only one chiral superfield.
| Original language | English |
|---|---|
| Pages (from-to) | 272-277 |
| Number of pages | 6 |
| Journal | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics |
| Volume | 736 |
| DOIs | |
| Publication status | Published - 7 Sep 2014 |
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ASJC Scopus subject areas
- Nuclear and High Energy Physics
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Inflation in supergravity with a single chiral superfield. / Ketov, Sergei V.; Terada, Takahiro.
In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 736, 07.09.2014, p. 272-277.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Inflation in supergravity with a single chiral superfield
AU - Ketov, Sergei V.
AU - Terada, Takahiro
PY - 2014/9/7
Y1 - 2014/9/7
N2 - We propose new supergravity models describing chaotic Linde- and Starobinsky-like inflation in terms of a single chiral superfield. The key ideas to obtain a positive vacuum energy during large field inflation are (i) stabilization of the real or imaginary partner of the inflaton by modifying a Kähler potential, and (ii) use of the crossing terms in the scalar potential originating from a polynomial superpotential. Our inflationary models are constructed by starting from the minimal Kähler potential with a shift symmetry, and are extended to the no-scale case. Our methods can be applied to more general inflationary models in supergravity with only one chiral superfield.
AB - We propose new supergravity models describing chaotic Linde- and Starobinsky-like inflation in terms of a single chiral superfield. The key ideas to obtain a positive vacuum energy during large field inflation are (i) stabilization of the real or imaginary partner of the inflaton by modifying a Kähler potential, and (ii) use of the crossing terms in the scalar potential originating from a polynomial superpotential. Our inflationary models are constructed by starting from the minimal Kähler potential with a shift symmetry, and are extended to the no-scale case. Our methods can be applied to more general inflationary models in supergravity with only one chiral superfield.
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UR - http://www.scopus.com/inward/citedby.url?scp=84907401373&partnerID=8YFLogxK
U2 - 10.1016/j.physletb.2014.07.036
DO - 10.1016/j.physletb.2014.07.036
M3 - Article
VL - 736
SP - 272
EP - 277
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
SN - 0370-2693
ER -