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Title: First Dark Matter Constraints from a SuperCDMS Single-Charge Sensitive Detector

Journal Article · · Physical Review Letters
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We present the first limits on inelastic electron-scattering dark matter and dark photon absorption using a prototype SuperCDMS detector having a charge resolution of 0.1 electron-hole pairs (CDMS HVeV, a 0.93 gram CDMS HV device). These electron-recoil limits significantly improve experimental constraints on dark matter particles with masses as low as 1 MeV/c^2. We demonstrate a sensitivity to dark photons competitive with other leading approaches but using substantially less exposure (0.49 gram days). These results demonstrate the scientific potential of phonon-mediated semiconductor detectors that are sensitive to single electronic excitations.

Research Organization:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States); Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP); \
Contributing Organization:
SuperCDMS Collaboration
Grant/Contract Number:
AC02-07CH11359; AC05-76RL01830; AC02-76SF00515; AC02-05CH11231; SC0015657
OSTI ID:
1462788
Alternate ID(s):
OSTI ID: 1439463; OSTI ID: 1468696; OSTI ID: 1480804; OSTI ID: 1557121; OSTI ID: 1598292
Report Number(s):
FERMILAB-PUB-18-150-AE; arXiv:1804.10697; PNNL-SA-134526; PRLTAO; 051301
Journal Information:
Physical Review Letters, Journal Name: Physical Review Letters Vol. 121 Journal Issue: 5; ISSN 0031-9007
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 150 works
Citation information provided by
Web of Science

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Figures / Tables (4)

FIG. 1(p. 4)figure FIG. 1
FIG. 2(p. 5)figure FIG. 2
FIG. 3(p. 5)figure FIG. 3
FIG. 4(p. 6)figure FIG. 4

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particle dark matter
hypothetical gauge bosons
dark matter detectors