National Technical Reports Library - NTRL

National Technical Reports Library

The National Technical Information Service acquires, indexes, abstracts, and archives the largest collection of U.S. government-sponsored technical reports in existence. The NTRL offers online, free and open access to these authenticated government technical reports. Technical reports and documents in its repository may be available online for free either from the issuing federal agency, the U.S. Government Publishing Office’s Federal Digital System website, or through search engines.




Details
Actions:
Download PDFDownload PDF
Download

Search for Annual Modulation in Low-Energy CDMS-II Data.


DE141134561

Publication Date 2014
Personal Author Ahmed, Z.; Akerib, D. S.; Anderson, A. J.; Arrenberg, S.; Bailey, C. N.; Baudis, L.; Bauer, D. A.; Bunker, R.; Brink, P. L.; Bruch, T.
Page Count 13
Abstract The authors report limits on annual modulation of the low-energy event rate from the Cryogenic Dark Matter Search (CDMS II) experiment at the Soudan Underground Laboratory. Such a modulation could be produced by interactions from Weakly Interacting Massive Particles (WIMPs) with masses approximately 10 GeV/c(sub 2). They find no evidence for annual modulation in the event rate of veto-anticoincident single-detector interactions consistent with nuclear recoils, and constrain the magnitude of any modulation to <0.06 event (keVnr kg day)(sub -1) in the 5 11.9 keVnr energy range at the 99% condence level. These results disfavor an explanation for the reported modulation in the 1.2-3.2 keV(sup ee) energy range in CoGeNT in terms of nuclear recoils resulting from elastic scattering of WIMPs at >98% condence. For events consistent with electron recoils, no signicant modulation is observed for either single- or multiple-detector interactions in the 3.0-7.4 keV(sup ee) range.
Keywords
  • Cryogenics
  • Dark matter
  • Detectors
  • Elastic scattering
  • Electrons
  • Energy range
  • Interactions
  • Modulation
  • Weakly Interacting Massive Particle(WIMP)
Source Agency
  • Technical Information Center Oak Ridge Tennessee
NTIS Subject Category
  • 46 - Physics
  • 54C - Astrophysics
Corporate Authors Stanford Linear Accelerator Center, CA.; Department of Energy, Washington, DC.
Supplemental Notes Sponsored by Department of Energy, Washington, DC.
Document Type Technical Report
NTIS Issue Number 201425
Contract Number
  • DE-AC02-76SF00515
Search for Annual Modulation in Low-Energy CDMS-II Data.
Search for Annual Modulation in Low-Energy CDMS-II Data.
DE141134561

  • Cryogenics
  • Dark matter
  • Detectors
  • Elastic scattering
  • Electrons
  • Energy range
  • Interactions
  • Modulation
  • Weakly Interacting Massive Particle(WIMP)
  • Technical Information Center Oak Ridge Tennessee
  • 46 - Physics
  • 54C - Astrophysics
  • DE-AC02-76SF00515
Loading