Finite temperature behaviour of the ISS-uplifted KKLT model

Details Finite temperature behaviour of the ISS-uplifted KKLT model Finite temperature behaviour of the ISS-uplifted KKLT model

2008-02-13

arxiv.org/abs/0802.1861v2

JHEP0805:068,2008

Physics

High Energy Physics

High Energy Physics - Theory

23 pages, 3 figures, mistake corrected, one plot updated, physical conclusions unchanged

Scientific paper

10.1088/1126-6708/2008/05/068

We study the static phase structure of the ISS-KKLT model for moduli stabilisation and uplifting to a zero cosmological constant. Since the supersymmetry breaking sector and the moduli sector are only gravitationally coupled, we expect negligible quantum effects of the modulus upon the ISS sector, and the other way around. Under this assumption, we show that the ISS fields end up in the metastable vacua. The reason is not only that it is thermally favoured (second order phase transition) compared to the phase transition towards the supersymmetric vacua, but rather that the metastable vacua form before the supersymmetric ones. This nice feature is exclusively due to the presence of the KKLT sector. We also show that supergravity effects are negligible around the origin of the field space. Finally, we turn to the modulus sector and show that there is no destabilisation effect coming from the ISS sector.

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