Abstract
We propose the unified models of cosmological inflation, spontaneous SUSY breaking, and the dark energy (de Sitter vacuum) in N= 1 supergravity with the dilaton–axion chiral superfield T in the presence of an N= 1 vector multiplet with the alternative Fayet–Iliopoulos term. By using the Kähler potential as K= - αlog (T+ T¯) and the superpotential as a sum of a constant and a linear term, we find that viable inflation is possible for 3 ≤ α≤ αmax where αmax≈ 7.235. Observations of the amplitude of primordial scalar perturbations fix the SUSY breaking scale in our models as high as 1013GeV. In the case of α> 3 the axion gets the tree-level (non-tachyonic) mass comparable to the inflaton mass.
| Original language | English |
|---|---|
| Article number | 713 |
| Journal | European Physical Journal C |
| Volume | 79 |
| Issue number | 8 |
| DOIs | |
| Publication status | Published - 1 Aug 2019 |
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ASJC Scopus subject areas
- Engineering (miscellaneous)
- Physics and Astronomy (miscellaneous)
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Generalized dilaton–axion models of inflation, de Sitter vacua and spontaneous SUSY breaking in supergravity. / Aldabergenov, Yermek; Chatrabhuti, Auttakit; Ketov, Sergei V.
In: European Physical Journal C, Vol. 79, No. 8, 713, 01.08.2019.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Generalized dilaton–axion models of inflation, de Sitter vacua and spontaneous SUSY breaking in supergravity
AU - Aldabergenov, Yermek
AU - Chatrabhuti, Auttakit
AU - Ketov, Sergei V.
PY - 2019/8/1
Y1 - 2019/8/1
N2 - We propose the unified models of cosmological inflation, spontaneous SUSY breaking, and the dark energy (de Sitter vacuum) in N= 1 supergravity with the dilaton–axion chiral superfield T in the presence of an N= 1 vector multiplet with the alternative Fayet–Iliopoulos term. By using the Kähler potential as K= - αlog (T+ T¯) and the superpotential as a sum of a constant and a linear term, we find that viable inflation is possible for 3 ≤ α≤ αmax where αmax≈ 7.235. Observations of the amplitude of primordial scalar perturbations fix the SUSY breaking scale in our models as high as 1013GeV. In the case of α> 3 the axion gets the tree-level (non-tachyonic) mass comparable to the inflaton mass.
AB - We propose the unified models of cosmological inflation, spontaneous SUSY breaking, and the dark energy (de Sitter vacuum) in N= 1 supergravity with the dilaton–axion chiral superfield T in the presence of an N= 1 vector multiplet with the alternative Fayet–Iliopoulos term. By using the Kähler potential as K= - αlog (T+ T¯) and the superpotential as a sum of a constant and a linear term, we find that viable inflation is possible for 3 ≤ α≤ αmax where αmax≈ 7.235. Observations of the amplitude of primordial scalar perturbations fix the SUSY breaking scale in our models as high as 1013GeV. In the case of α> 3 the axion gets the tree-level (non-tachyonic) mass comparable to the inflaton mass.
UR - http://www.scopus.com/inward/record.url?scp=85071337789&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85071337789&partnerID=8YFLogxK
U2 - 10.1140/epjc/s10052-019-7225-2
DO - 10.1140/epjc/s10052-019-7225-2
M3 - Article
VL - 79
JO - European Physical Journal C
JF - European Physical Journal C
SN - 1434-6044
IS - 8
M1 - 713
ER -