Accidental Kähler moduli inflation

Maharana, Anshuman (Harish Chandra Research Institute, Chhatnag Road, Jhunsi, Allahabad, UP 211019, India) ; Rummel, Markus (Rudolph Peierls Centre for Theoretical Physics, University of Oxford, 1 Keble Road, Oxford, OX1 3NP, United Kingdom) ; Sumitomo, Yoske (High Energy Accelerator Research Organization, KEK, 1-1 Oho, Tsukuba, Ibaraki 305-0801 Japan)

30 January 2017

Abstract: We study a model of accidental inflation in type IIB string theory where inflation occurs near the inflection point of a small Kähler modulus. A racetrack structure helps to alleviate the known concern that string-loop corrections may spoil Kähler Moduli Inflation unless having a significant suppression via the string coupling or a special brane setup. Also, the hierarchy of gauge group ranks required for the separation between moduli stabilization and inflationary dynamics is relaxed. The relaxation becomes more significant when we use the recently proposed D-term generated racetrack model.


Published in: JCAP 1509 (2015) 040
Published by: Institute of Physics Publishing/SISSA
DOI: 10.1088/1475-7516/2015/09/040
arXiv: 1504.07202
License: CC-BY-3.0



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