CDMS-II to SuperCDMS: WIMP search at a zeptobarn
作者： T. Bruch
DOI:
关键词: Sensitivity (control systems) 、 Cryogenic Dark Matter Search 、 Weakly interacting massive particles 、 Nuclear physics 、 WIMP 、 Detector 、 Dark matter 、 Elastic scattering 、 Particle physics 、 Physics 、 Germanium
摘要: The Cryogenic Dark Matter search experiment (CDMS) employs low-temperature Ge and Si detectors to detect WIMPs via their elastic scattering of target nuclei. last analysis with an germanium exposure 397.8 kg-days resulted in zero observed candidate events, setting upper limit on the spin-independent WIMP-nucleon cross-section 6.6 x 10^{-44} cm^2 (4.6 cm^2, when previous CDMS Soudan data is included) for a WIMP mass 60 GeV. improvements surface event rejection capability current about factor 2.5 greater than used will be discussed. To increase sensitivity beyond 1 benchmark new inch thick have been developed. A first tower consisting six these has successfully installed at site. These 15 kg SuperCDMS stage expected 5 10^{-45} cm^2. In addition, Collaboration started look signatures non dark matter particles, which may explain annual modulation signature by DAMA.
arxiv.org参考文章(1)
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