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Title: The Search for Dark Matter

Abstract

More than 25 years ago, PNNL scientists began the first underground measurements searching for dark matter using specialized radiation detector technology. Dark matter is yet to be discovered says Physicist John L. Orrell.

Authors:
Publication Date:
Research Org.:
PNNL (Pacific Northwest National Laboratory (PNNL), Richland, WA (United States))
Sponsoring Org.:
USDOE
OSTI Identifier:
1144732
Resource Type:
Multimedia
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS; DARK MATTER; GERMANIUM DETECTORS; SHALLOW UNDERGROUND LABORATORY; SUL; PHYSICS; ASTROPHYSICS; ORIGIN; DETECTOR

Citation Formats

Orrell, John. The Search for Dark Matter. United States: N. p., 2013. Web.
Orrell, John. The Search for Dark Matter. United States.
Orrell, John. 2013. "The Search for Dark Matter". United States. doi:. https://www.osti.gov/servlets/purl/1144732.
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title = {The Search for Dark Matter},
author = {Orrell, John},
abstractNote = {More than 25 years ago, PNNL scientists began the first underground measurements searching for dark matter using specialized radiation detector technology. Dark matter is yet to be discovered says Physicist John L. Orrell.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 2013,
month =
}
  • Deciphering the nature of dark matter has great scientific importance. A leading hypothesis is that dark matter is made of Weakly Interactive Massive Particles (WIMPs), which may result from supersymmetry or additional spatial dimensions. The underground search for elastic scattering of WIMPs on suitable targets (the so-called 'direct detection') is currently led by the Cryogenic Dark Matter Search II (CDMS II) experiment. Its sensitivity is ten times better than any other experiment and we hope to obtain another factor ten in the coming two years. After a brief recall of our recent results, I will describe the complementarity between directmore » detection experiments, the LHC and the ILC and I will outline the role that SLAC could play in this SuperCDMS program.« less
  • The Fermi Gamma-Ray Space Telescope has been scanning the gamma ray sky since it was launched by NASA in June 2008 and has a mission lifetime goal of 10 years. Largely due to our particle physics heritage, one of the main physics topics being studied by the Fermi LAT Collaboration is the search for dark matter via indirect detection. My talk will review the progress of these studies, something on how the LAT detector enables them, and expectations for the future. I will discuss both gamma-ray and (electron + positron) searches for dark matter, and some resulting theoretical implications.