Colliders as a simultaneous probe of supersymmetric dark matter and Terascale cosmology

Abstract

Terascale supersymmetry has the potential to provide a natural explanation of the dominant dark matter component of the standard lambda-CDM cosmology. However once we impose the constraints on minimal supersymmetry parameters from current particle physics data, a satisfactory dark matter abundance is no longer prima facie natural. This Neutralino Tuning Problem could be a hint of nonstandard cosmology during and/or after the Terascale era. To quantify this possibility, we introduce an alternative cosmological benchmark based upon a simple model of quintessential inflation. This benchmark has no free parameters, so for a given supersymmetry model it allows an unambiguous prediction of the dark matter relic density. As a example, we scan over the parameter space of the CMSSM, comparing the neutralino relic density predictions with the bounds from WMAP. We find that the WMAP--allowed regions of the CMSSM are an order of magnitude larger if we use the alternative cosmological benchmark, as opposed to lambda-CDM. Initial results from the CERN Large Hadron Collider will distinguish between the two allowed regions.

arXiv comment14 pages, 8 figures

References in corpus (30)

• DarkSUSY: Computing Supersymmetric Dark Matter Properties Numerically
• Neutralino Relic Density including Coannihilations
• Largest temperature of the radiation era and its cosmological implications
• The Well-Tempered Neutralino
• micrOMEGAs: Version 1.3
• Supersymmetric Dark Matter in Light of WMAP
• The Soft Supersymmetry-Breaking Lagrangian: Theory and Applications
• Direct, Indirect and Collider Detection of Neutralino Dark Matter In SUSY Models with Non-universal Higgs Masses
• WMAP Constraints, SUSY Dark Matter and Implications for the Direct Detection of SUSY
• First Results from the Cryogenic Dark Matter Search in the Soudan Underground Lab
• Updated Post-WMAP Benchmarks for Supersymmetry
• Chi**2 analysis of the minimal supergravity model including WMAP, g(mu)-2 and b -> s gamma constraints
• Updated Constraints on the Minimal Supergravity Model
• Updated Constraints on the Minimal Supergravity Model
• Multi-Dimensional mSUGRA Likelihood Maps
• Naturalness Priors and Fits to the Constrained Minimal Supersymmetric Standard Model
• Likelihood Analysis of the CMSSM Parameter Space
• Kination Dominated Reheating and Cold Dark Matter Abundance
• Quintessential Kination and Cold Dark Matter Abundance
• Updated Constraints on the Minimal Supergravity Model
• Requirements on collider data to match the precision of WMAP on supersymmetric dark matter
• Linear Collider Capabilities for Supersymmetry in Dark Matter Allowed Regions of the mSUGRA Model
• Abundance of Cosmological Relics in Low-Temperature Scenarios
• Neutralino Dark Matter from Heavy Gravitino Decay
• Prospects for Sparticle Discovery in Variants of the MSSM
• Neutralino dark matter in brane world cosmology
• Sensitivity of Supersymmetric Dark Matter to the b Quark Mass
• Slinky Inflation
• Supersymmetry and Cosmology
• Minimal Noncanonical Cosmologies

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• Inflationary Cosmology Connecting Dark Energy and Dark Matter
• Gravitational reheating in quintessential inflation
• Dirac gaugino as leptophilic dark matter
• Determining Reheating Temperature at Colliders with Axino or Gravitino Dark Matter
• Connecting LHC, ILC, and Quintessence
• Cold Dark Matter in non-Standard Cosmologies, PAMELA, ATIC and Fermi LAT
• Quintessential Kination and Thermal Production of Gravitinos and Axinos
• Dilaton dominance in the early Universe dilutes Dark Matter relic abundances
• Quintessential Kination and Leptogenesis
• Tracking Quintessence and Cold Dark Matter Candidates
• Quintessence, inflation and baryogenesis from a single pseudo-Nambu-Goldstone boson
• Self-accelerating solutions of scalar-tensor gravity
• Dilaton dominance relaxes LHC and cosmological constraints in supersymmetric models
• Dark Matter and Higgs Mass in the CMSSM with Yukawa Quasi-Unification
• The Effect of Lensing on the Large-Scale CMB Anisotropy