Testing Cosmology at the ILC

Abstract

We investigate the capabilities for the LHC and the ILC to perform measurements of new physics parameters relevant for the calculation of the cosmological relic abundance of the lightest neutralino in supersymmetry. Specifically, we delineate the range of values for the cold dark matter relic abundance ${\Omega }_{\chi }{h}^2$, which will be consistent with the expected precision measurements at the LHC, and, subsequently, at the ILC. We illustrate our approach with a toy study of an "updated benchmark" point B'. We then show some preliminary results of a similar analysis along those lines of the LCC2 benchmark point in the focus point region.

6 pages, 4 figures. Based on talks given by A. Birkedal at Linear Collider workshops in 2004 and 2005

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• Connecting LHC, ILC, and Quintessence
• Constraining Dark Matter Properties with Gamma-Rays from the Galactic Center with Fermi-LAT
• Supersymmetric Heavy Higgses at e^+e^- Linear Collider and Dark-Matter Physics
• Measuring Dark Matter at Colliders