Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2008-06-06
JHEP0808:105,2008
Physics
High Energy Physics
High Energy Physics - Phenomenology
30 pages, 10 figures
Scientific paper
10.1088/1126-6708/2008/08/105
We present global fits to the Large Volume Scenario (LVS) of string models using current indirect data. We use WMAP5 constraints on dark matter relic density, b-physics and electroweak observables as well as direct search constraints. Such data can be adequately fit by LVS, with the best-fit point for mu>0 having chi^2=13.6 for 8 degrees of freedom. The resulting constraints on parameter space are robust in that they do not depend much upon the prior, or upon whether one uses Bayesian or frequentist interpretations of the data. Sparticle masses are constrained to be well below the 1 TeV level, predicting early SUSY discovery at the LHC. We devise a method of quantifying which are the most important constraints. We find that the LEP2 Higgs mass constraint, the relic density of dark matter and the anomalous magnetic moment of the muon affect the fits to the strongest degree.
Allanach Ben C.
Dolan Matthew J.
Weber Mark A.
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