New results from the search for low-mass weakly interacting massive particles with the CDMS low ionization threshold experiment
Journal Article
·
· Physical Review Letters
- Univ. of Florida, Gainesville, FL (United States). et al.
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). Results are presented from the second CDMSlite run with an exposure of 70 kg day, which reached an energy threshold for electron recoils as low as 56 eV. A fiducialization cut reduces backgrounds below those previously reported by CDMSlite. New parameter space for the WIMP-nucleon spin-independent cross section is excluded for WIMP masses between 1.6 and 5.5 GeV/c2.
- Research Organization:
- SLAC National Accelerator Lab., Menlo Park, CA (United States); Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- Contributing Organization:
- SuperCDMS; SuperCDMS Collaboration
- Grant/Contract Number:
- AC02-07CH11359; 13-S-04; DEAC02-76SF00515; AC02-05CH11231
- OSTI ID:
- 1223247
- Alternate ID(s):
- OSTI ID: 1238188; OSTI ID: 1454453
- Report Number(s):
- IPPP-15-56; DCTP-15-112; FERMILAB-PUB-15-394-AE; arXiv:1509.02448; PRLTAO; oai:inspirehep.net:1392432
- Journal Information:
- Physical Review Letters, Vol. 116, Issue 7; ISSN 0031-9007
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Cited by: 285 works
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