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SuperCDMS is an experiment designed to directly detect weakly interacting massive particles (WIMPs), a favored candidate for dark matter ubiquitous in the Universe. In this Letter, we present WIMP-search results using a calorimetric technique we call CDMSlite, which relies on voltage-assisted Luke-Neganov amplification of the ionization energy deposited by(More)
We report results of a search for weakly interacting massive particles (WIMPS) with the silicon detectors of the CDMS II experiment. This blind analysis of 140.2 kg day of data taken between July 2007 and September 2008 revealed three WIMP-candidate events with a surface-event background estimate of 0.41(-0.08)(+0.20)(stat)(-0.24)(+0.28)(syst). Other known(More)
The PICASSO experiment at SNOLAB reports new results for spin-dependent WIMP interactions on 19 F using the superheated droplet technique. A new generation of detectors and new features which enable background discrimination via the rejection of non-particle induced events are described. First results are presented for a subset of two detectors with target(More)
The economic impact of venture capital on the U.S. economy is significant. Global Insight (2007) estimated total revenue of venture-backed companies to be $2.3 trillion (17.6% of U.S. GDP) and 10.4 million jobs (9.1% of U.S. private sector employment) resulting from VC-backed IPO and M&A exits – the key determinants of venture capital performance. Thus it(More)
Variation of the cell parameter of polycrystalline boron doped diamond films. Acknowledgements We thank D. Wayne for mass spectrometry measurements of the B content of our samples, A. Presz for SEM images and S. Gierlotka for help in sample analysis. Competing interests statement The authors declare that they have no competing financial interests.(More)
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