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Title: Constraints on Light Dark Matter Particles Interacting with Electrons from DAMIC at SNOLAB

Journal Article · · Physical Review Letters

We report direct-detection constraints on light dark matter particles interacting with electrons. The results are based on a method that exploits the extremely low levels of leakage current of the DAMIC detector at SNOLAB of 2–6×10-22 A cm-2. Additionally, we evaluate the charge distribution of pixels that collect <10e- for contributions beyond the leakage current that may be attributed to dark matter interactions. Constraints are placed on so-far unexplored parameter space for dark matter masses between 0.6 and 100 MeV c-2. We also present new constraints on hidden-photon dark matter with masses in the range 1.2–30 eV c-2.

Research Organization:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP); Kavli Foundation; National Science Foundation (NSF); Consejo Nacional de Ciencia y Tecnología (CONACYT); Universidad Nacional Autónoma de Mexico; Canada Foundation for Innovation (CFI); Province of Ontario Ministry of Research and Innovation
Contributing Organization:
DAMIC Collaboration
Grant/Contract Number:
AC02-07CH11359; NSF PHY-1806974; 240666; IN108917
OSTI ID:
1558439
Report Number(s):
arXiv:1907.12628; FERMILAB-PUB-19-432-AE-SCD; PRLTAO; oai:inspirehep.net:1747015
Journal Information:
Physical Review Letters, Vol. 123, Issue 18; ISSN 0031-9007
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 106 works
Citation information provided by
Web of Science

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