Akerib, D.S.; Bailey, C.N.; Brusov, P.P.; Dragowsky, M.R.; Driscoll, D.D.; Grant, D.R.; Hennings-Yeomans, R.; Kamat, S.; Perera, T.A.; Schnee, R.W.; Armel-Funkhouser, M. S.; Daal, M.; Filippini, J.; Lu, A.; Mandic, V.; Meunier, P.; Mirabolfathi, N.; Rau, W.; Seitz, D. N.; Serfass, B.
CDMS Collaboration
arXiv e-print [ PDF ]2006
CDMS Collaboration
arXiv e-print [ PDF ]2006
AbstractAbstract
[en] The Cryogenic Dark Matter Search (CDMS) is an experiment to detect weakly interacting massive particles (WIMPs), which may constitute the universe's dark matter, based on their interactions with Ge and Si nuclei. We report the results of an analysis of data from the first two runs of CDMS at the Soudan Underground Laboratory in terms of spin-dependent WIMP-nucleon interactions on 73Ge and 29Si. These data exclude new regions of WIMP parameter space, including regions relevant to spin-dependent interpretations of the annual modulation signal reported by the DAMA/NaI experiment
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Source
(c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
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Journal Article
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ANGULAR MOMENTUM, BARYONS, ELEMENTARY PARTICLES, EVEN-ODD NUCLEI, FERMIONS, GERMANIUM ISOTOPES, HADRONS, INTERACTIONS, INTERMEDIATE MASS NUCLEI, INTERNAL CONVERSION RADIOISOTOPES, ISOMERIC TRANSITION ISOTOPES, ISOTOPES, LEVELS, LIGHT NUCLEI, MATTER, MILLISECONDS LIVING RADIOISOTOPES, NUCLEI, PARTICLE PROPERTIES, RADIOISOTOPES, SILICON ISOTOPES, STABLE ISOTOPES
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AbstractAbstract
[en] The CDMS-II collaboration's Cold Dark Matter search presently sets the most competitive exclusion limit in the world for the direct detection of the hypothesized Weakly Interacting Massive Particles (WIMPs) that constitute the cold dark matter of the Universe. Our experiment utilizes Ge (and Si) crystals as the target detectors, each with a mass of 250 g (100 g) and cooled to 30 mK. To eliminate natural radioactive sources as background the experiment is conducted in a well-shielded environment in the Soudan Mine, Minnesota, and has been operating for the last two years. To aid in the identification of a possible WIMP-candidate event, the detectors are designed to measure both the ionization and athermal phonon signals produced by each candidate event. The athermal phonon signal is measured using superconducting aluminum films on the crystal surface connected to tungsten transition edge sensors. The latest WIMP-search results from Soudan will be presented, along with projections for the future
Secondary Subject
Source
LT24: 24. international conference on low temperature physics; Orlando, FL (United States); 10-17 Aug 2005; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
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Journal Article
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Conference
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