Probing 23% of the Universe at the Large Hadron Collider

Details Probing 23% of the Universe at the Large Hadron Collider Probing 23% of the Universe at the Large Hadron Collider

Oct 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008aps..dnp.da027f&link_type=abstract

American Physical Society, 2008 Annual Meeting of the Division of Nuclear Physics, October 23-26, 2008, abstract #DA.027

Physics

Nuclear Physics

Scientific paper

With recent astronomical measurements, we know that 23% of the Universe is composed of dark matter, whose origin is unknown. Supersymmtery (SUSY), a leading theory in physics, provides us with a cold dark matter candidate, the lightest supersymmetric particle (LSP). SUSY particles, including the LSP, can be created at Large Hadron Collider (LHC) at CERN. We perform a systematic study to characterize the SUSY signals in the ``focus point'' region, one of a few cosmologically-allowed regions in our SUSY model. We also present a methodology for extracting the dark matter signals at the LHC, and show the accuracy to which we can measure the dark matter relic density and the SUSY parameters.

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