Non-perturbative Kahler Potential, Dilaton Stabilization and Fayet-Iliopoulos Term

Abstract

We study the dilaton stabilization in models with anomalous U(1) symmetry by adding specific string-motivated, non-perturbative corrections to the tree-level dilaton Kähler potential. We find that the non-perturbative effects can stabilize the dilaton at a desirably large value. We also observe that the size of Fayet-Iliopoulos term is reduced at the stabilized point.

arXiv comment10 pages, 2 figures

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• Towards natural inflation from weakly coupled heterotic string theory
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• D-term Inflation and Nonperturbative Kahler Potential of Dilaton