Global Fits of the Large Volume String Scenario to WMAP5 and Other Indirect Constraints Using Markov Chain Monte Carlo

Abstract

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.

arXiv comment30 pages, 10 figures

References in corpus (41)

• Seven-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
• Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
• de Sitter Vacua in String Theory
• Weak Decays Beyond Leading Logarithms
• Precision Corrections in the Minimal Supersymmetric Standard Model
• micrOMEGAs: A program for calculating the relic density in the MSSM
• SUSY Les Houches Accord: Interfacing SUSY Spectrum Calculators, Decay Packages, and Event Generators
• micrOMEGAs: Version 1.3
• The QCD Axion and Moduli Stabilisation
• Precise determination of the neutral Higgs boson masses in the MSSM
• Neutralino with the Right Cold Dark Matter Abundance in (Almost) Any Supersymmetric Model
• SuperIso: A program for calculating the isospin asymmetry of B -> K* gamma in the MSSM
• Kahler Moduli Inflation
• Scattering of Gauge, Matter, and Moduli Fields from Intersecting Branes
• The Unitarity Triangle Fit in the Standard Model and Hadronic Parameters from Lattice QCD: A Reappraisal after the Measurements of Delta m_s and BR(B to tau nu)
• Hints of large tan(beta) in flavour physics
• Probing Supergravity Grand Unification in the Brookhaven g-2 Experiment
• A Markov Chain Monte Carlo Analysis of the CMSSM
• The Upsilon spectrum and m_b from full lattice QCD
• Electroweak and supersymmetric two-loop corrections to (g-2)_μ
• Two-Loop SUSY Corrections to the Anomalous Magnetic Moment of the Muon
• The B Meson Decay Constant from Unquenched Lattice QCD
• Precise Prediction for M_W in the MSSM
• Determining the spin of supersymmetric particles at the LHC using lepton charge asymmetry
• Strings at the Intermediate Scale, or is the Fermi Scale Dual to the Planck Scale?
• String loop corrected hypermultiplet moduli spaces
• Averages of b-hadron Properties at the End of 2005
• Soft SUSY Breaking Terms for Chiral Matter in IIB String Compactifications
• Multi-Dimensional mSUGRA Likelihood Maps
• Astrophysical and Cosmological Implications of Large Volume String Compactifications
• Naturalness Priors and Fits to the Constrained Minimal Supersymmetric Standard Model
• Measurement of the B --> K^* gamma Branching Fractions and Asymmetries
• SUSY constraints from relic density: high sensitivity to pre-BBN expansion rate
• Gaugino and Scalar Masses in the Landscape
• The Fluxed MSSM
• Sparticle Spectra and LHC Signatures for Large Volume String Compactifications
• On the detectability of the CMSSM light Higgs boson at the Tevatron
• On prospects for dark matter indirect detection in the Constrained MSSM
• New constraints on supersymmetric models from b -> s gamma
• The Neutrino Suppression Scale from Large Volumes
• Neutrino sector impacts SUSY dark matter

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• Supersymmetry Without Prejudice
• The impact of priors and observables on parameter inferences in the Constrained MSSM
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• Fitting the Phenomenological MSSM
• Bayesian Selection of sign(mu) within mSUGRA in Global Fits Including WMAP5 Results
• The MSSM confronts the precision electroweak data and the muon g-2
• Implications of LHC Searches on SUSY Particle Spectra: The pMSSM Parameter Space with Neutralino Dark Matter
• A Profile Likelihood Analysis of the Constrained MSSM with Genetic Algorithms
• Impact of CMS Multi-jets and Missing Energy Search on CMSSM Fits
• Selecting a Model of Supersymmetry Breaking Mediation
• A Coverage Study of the CMSSM Based on ATLAS Sensitivity Using Fast Neural Networks Techniques
• The impact of the ATLAS zero-lepton, jets and missing momentum search on a CMSSM fit
• Dark Matter in the MSSM
• Prospects for dark matter detection with IceCube in the context of the CMSSM
• A Bayesian Analysis of the Constrained NMSSM
• Naturalness of the relaxion mechanism
• Bayesian analysis and naturalness of (Next-to-)Minimal Supersymmetric Models
• Supersymmetry With Prejudice: Fitting the Wrong Model to LHC Data
• Supersymmetric SU(5) Grand Unification for a Post Higgs Boson Era
• No Prejudice in Space