Is the CDM particle still elusive?

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SUMMARY

The discussion highlights the ongoing challenges in detecting the CDM particle, with XENON10 excelling at lower mass detection and CDMS II focusing on higher mass ranges. Both experiments are approaching the discovery threshold, yet the scattering cross section of approximately 10-44 cm2 indicates that detection remains elusive, as it corresponds to a mean free path in solid lead measured in light years. The complexity of supersymmetry (SUSY) theory, characterized by its vast parameter space, complicates the search, leaving many potential regions beyond current experimental capabilities.

PREREQUISITES
  • Understanding of dark matter concepts
  • Familiarity with supersymmetry (SUSY) theory
  • Knowledge of particle detection methods, specifically XENON10 and CDMS II
  • Basic grasp of scattering cross sections and their implications in particle physics
NEXT STEPS
  • Research the latest findings from XENON10 and CDMS II experiments
  • Explore advanced concepts in supersymmetry parameter space
  • Study the implications of scattering cross sections in particle physics
  • Investigate other dark matter detection experiments and their methodologies
USEFUL FOR

Physicists, researchers in particle physics, and anyone interested in the complexities of dark matter and supersymmetry searches.

wolram
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From the discussion in APS Viewpoints.

The two experiments taken together—XENON10 superior at lower masses and CDMS II at higher—are now encroaching well into the region where discovery may be lurking, a marvelous feat considering that a scattering cross section of order 10-44 cm2 corresponds to a mean free path measured in light years of solid lead. Expectations should be tempered, however, as supersymmetry as a theory has an enormous dimensionality and is largely unconstrained. Parameter explorations of supersymmetry performed with a view to understanding the implications for experiments generate landscapes extending orders of magnitude in both mass and cross section, some regions of which always lay beyond the pale of any conceivable experiment


Are they saying the CDM particle may remain a mystery.
 
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Astronomy news on Phys.org
Benchmark for SUSY searches.

http://www.slac.stanford.edu/spires/find/hep?key=4875940
 
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