| Issue |
EPL
Volume 139, Number 5, September 2022
|
|
|---|---|---|
| Article Number | 59002 | |
| Number of page(s) | 7 | |
| Section | Gravitation, cosmology and astrophysics | |
| DOI | https://doi.org/10.1209/0295-5075/ac8952 | |
| Published online | 25 August 2022 | |
Single-field slow-roll effective potential from Kähler moduli stabilizations in type-IIB/F-theory
Centre of Advanced Studies, Department of Physics, The University of Burdwan - Burdwan 713 104, India
(a) bghosh@phys.buruniv.ac.in (corresponding author)
Received: 10 July 2022
Accepted: 12 August 2022
We derive a single-field slow-roll inflaton potential in three-intersecting-D7-branes configuration under type-IIB/F-theory compactification. Among three resulting Kähler moduli corresponding to three orthogonal directions, two are stabilized via perturbative corrections in the Kähler potential arising from the large-volume scenario 
and four-graviton scattering amplitude up to one loop level and the remaining Kähler modulus is stabilized by KKLT-type non-perturbative correction in superpotential. The symmetric combination of two canonically normalized and perturbatively stabilized Kähler moduli gives the inflaton field and the anti-symmetric combination manifests itself as an auxiliary field.
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