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

Abstract

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/$$\mathrm{c^2}$$. 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.

Authors:
;
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States); Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Contributing Org.:
SuperCDMS
OSTI Identifier:
1439463
Report Number(s):
FERMILAB-PUB-18-150-AE; arXiv:1804.10697
Journal ID: ISSN 0031--9007; 1670791
DOE Contract Number:  
AC02-07CH11359
Resource Type:
Journal Article
Resource Relation:
Journal Name: Phys.Rev.Lett.; Journal Volume: 121; Journal Issue: 5
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS; 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Agnese, R., and et al.. First Dark Matter Constraints from SuperCDMS Single-Charge Sensitive Detectors. United States: N. p., 2018. Web. doi:10.1103/PhysRevLett.121.051301.
Agnese, R., & et al.. First Dark Matter Constraints from SuperCDMS Single-Charge Sensitive Detectors. United States. doi:10.1103/PhysRevLett.121.051301.
Agnese, R., and et al.. Fri . "First Dark Matter Constraints from SuperCDMS Single-Charge Sensitive Detectors". United States. doi:10.1103/PhysRevLett.121.051301. https://www.osti.gov/servlets/purl/1439463.
@article{osti_1439463,
title = {First Dark Matter Constraints from SuperCDMS Single-Charge Sensitive Detectors},
author = {Agnese, R. and et al.},
abstractNote = {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/$\mathrm{c^2}$. 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.},
doi = {10.1103/PhysRevLett.121.051301},
journal = {Phys.Rev.Lett.},
number = 5,
volume = 121,
place = {United States},
year = {Fri Apr 27 00:00:00 EDT 2018},
month = {Fri Apr 27 00:00:00 EDT 2018}
}