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Title: The DarkSide Multiton Detector for the Direct Dark Matter Search

A wide range of astronomical evidence implies the existence of Dark Matter, but as yet the nature of this major component of the Universe is completely unknown. A leading candidate explanation is that Dark Matter is composed of Weakly Interacting Massive Particles (WIMPs) formed in the early universe and gravitationally clustered together with the standard baryonic matter. Such WIMPs could in principle be detected through their collisions with ordinary nuclei in a sensitive target, producing observable low-energy (<100 keV) nuclear recoils. The predicted collision rates are very low and require ultra-low background detectors with large (0.1 { 10 tons) target masses, located in deep underground sites to reduce the background produced by neutrons from cosmic ray muons [1{4].
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Publication Date:
OSTI Identifier:
1290408
Report Number(s):
PNNL-SA-102086
Journal ID: ISSN 1687-7365
DOE Contract Number:
AC05-76RL01830
Resource Type:
Journal Article
Resource Relation:
Journal Name: Advances in High Energy Physics (Online); Journal Volume: 2015
Publisher:
Hindawi
Research Org:
Pacific Northwest National Laboratory (PNNL), Richland, WA (US)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
Dark Matter; WIMPS; Weakly Interacting Massive Particles; nuclei, ultra-low background detectors