Sparticle Spectrum of Large Volume Compactification

Details Sparticle Spectrum of Large Volume Compactification Sparticle Spectrum of Large Volume Compactification

2010-11-03

arxiv.org/abs/1011.0999v1

JHEP 1102:047,2011

Physics

High Energy Physics

High Energy Physics - Theory

29 pages

Scientific paper

10.1007/JHEP02(2011)047

We examine the large volume compactification of Type IIB string theory or its F theory limit and the associated supersymmetry breakdown and soft terms. It is crucial to incorporate the loop-induced moduli mixing, originating from radiative corrections to the Kahler potential. We show that in the presence of moduli mixing, soft scalar masses generically receive a D-term contribution of the order of the gravitino mass m_{3/2} when the visible sector cycle is stabilized by the D-term potential of an anomalous U(1) gauge symmetry, while the moduli-mediated gaugino masses and A-parameters tend to be of the order of m_{3/2}/8pi^2. It is noticed also that a too large moduli mixing can destabilize the large volume solution by making it a saddle point.

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