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Title: New results from the search for low-mass weakly interacting massive particles with the CDMS low ionization threshold experiment

Abstract

The CDMS low ionization threshold experiment (CDMSlite) uses cryogenic germanium detectors operated at a relatively high bias voltage to amplify the phonon signal in the search for weakly interacting massive particles (WIMPs). Our results are presented from the second CDMSlite run with an exposure of 70 kg days, which reached an energy threshold for electron recoils as low as 56 eV. Furthermore, a fiducialization cut reduces backgrounds below those previously reported by CDMSlite. Lastly, new parameter space for the WIMP-nucleon spin-independent cross section is excluded forWIMP masses between 1.6 and 5.5 GeV/c 2.

Authors:
 [1]
  1. Univ. of Florida, Gainesville, FL (United States). et al.
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Contributing Org.:
SuperCDMS Collaboration
OSTI Identifier:
1223247
Alternate Identifier(s):
OSTI ID: 1238188; OSTI ID: 1454453
Report Number(s):
FERMILAB-PUB-15-394-AE
Journal ID: ISSN 0031-9007; PRLTAO; arXiv eprint number arXiv:1509.02448
Grant/Contract Number:  
AC02-07CH11359; 13-S-04; DEAC02-76SF00515; AC02-05CH11231
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 116; Journal Issue: 7; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Agnese, R. New results from the search for low-mass weakly interacting massive particles with the CDMS low ionization threshold experiment. United States: N. p., 2016. Web. doi:10.1103/PhysRevLett.116.071301.
Agnese, R. New results from the search for low-mass weakly interacting massive particles with the CDMS low ionization threshold experiment. United States. doi:10.1103/PhysRevLett.116.071301.
Agnese, R. Wed . "New results from the search for low-mass weakly interacting massive particles with the CDMS low ionization threshold experiment". United States. doi:10.1103/PhysRevLett.116.071301. https://www.osti.gov/servlets/purl/1223247.
@article{osti_1223247,
title = {New results from the search for low-mass weakly interacting massive particles with the CDMS low ionization threshold experiment},
author = {Agnese, R.},
abstractNote = {The CDMS low ionization threshold experiment (CDMSlite) uses cryogenic germanium detectors operated at a relatively high bias voltage to amplify the phonon signal in the search for weakly interacting massive particles (WIMPs). Our results are presented from the second CDMSlite run with an exposure of 70 kg days, which reached an energy threshold for electron recoils as low as 56 eV. Furthermore, a fiducialization cut reduces backgrounds below those previously reported by CDMSlite. Lastly, new parameter space for the WIMP-nucleon spin-independent cross section is excluded forWIMP masses between 1.6 and 5.5 GeV/c2.},
doi = {10.1103/PhysRevLett.116.071301},
journal = {Physical Review Letters},
number = 7,
volume = 116,
place = {United States},
year = {2016},
month = {2}
}

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