Sparticle spectrum and EWSB of mixed modulus-anomaly mediation in fluxed string compactification models

Abstract

We examine low energy sparticle mass-spectrum and electroweak symmetry breaking (EWSB) in the mixed modulus-anomaly mediation which is naturally realized in KKLT flux compactification. We find that the anomaly-mediation effectively lowers messenger scale in the moduli-mediation and leads to 'squeezed' mass-spectrum distinct from any known mediation mechanisms. The lightest neutralino typically becomes a mixed state of bino and higgsino or pure higgsino, which has a considerable impact on the cold dark matter physics.

Comments: aipproc, 5 pages, 4 figures, Talk given at the 11th International Symposium on Particles, Strings and Cosmology (PASCOS05) Gyeongju, Korea, 30 May-4 June 2005 and the 13th International Conference on Supersymmetry and Unification of Fundamental Interactions (SUSY05) Durham, United Kingdom, 18-23 July 2005