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

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

2005-09-22

arxiv.org/abs/hep-ph/0509225v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

aipproc, 5 pages, 4 figures, Talk given at the 11th International Symposium on Particles, Strings and Cosmology (PASCOS05) Gye

Scientific paper

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.

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