Moduli stabilization with positive vacuum energy

Details Moduli stabilization with positive vacuum energy Moduli stabilization with positive vacuum energy

2006-07-12

arxiv.org/abs/hep-th/0607077v1

JHEP0610:044,2006

Physics

High Energy Physics

High Energy Physics - Theory

20 pages, 1 figure

Scientific paper

10.1088/1126-6708/2006/10/044

We study the effect of anomalous U(1) gauge groups in string theory compactification with fluxes. We find that, in a gauge invariant formulation, consistent AdS vacua appear breaking spontaneously supergravity. Non vanishing D-terms from the anomalous symmetry act as an uplifting potential and could allow for de Sitter vacua. However, we show that in this case the gravitino is generically (but not always) much heavier than the electroweak scale. We show that alternative uplifting scheme based on corrections to the Kahler potential can be compatible with a gravitino mass in the TeV range.

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