Results from the Final Exposure of the CDMS II Experiment
| Autor: | The CDMS Collaboration, Ahmed, Z. |
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| Rok vydání: | 2009 |
| Předmět: | |
| Zdroj: | Science 327:1619-1621,2010 |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1126/science.1186112 |
| Popis: | We report results from a blind analysis of the final data taken with the Cryogenic Dark Matter Search experiment (CDMS II) at the Soudan Underground Laboratory, Minnesota, USA. A total raw exposure of 612 kg-days was analyzed for this work. We observed two events in the signal region; based on our background estimate, the probability of observing two or more background events is 23%. These data set an upper limit on the Weakly Interacting Massive Particle (WIMP)-nucleon elastic-scattering spin-independent cross-section of 7.0x10^{-44} cm^2 for a WIMP of mass 70 GeV/c^2 at the 90% confidence level. Combining this result with all previous CDMS II data gives an upper limit on the WIMP-nucleon spin-independent cross-section of 3.8x10^{-44} cm^2 for a WIMP of mass 70 GeV/c^2. We also exclude new parameter space in recently proposed inelastic dark matter models. Comment: 6 pages, 5 figures |
| Databáze: | arXiv |
| Externí odkaz: |
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