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Title: SENSEI: First Direct-Detection Constraints on Sub-GeV Dark Matter from a Surface Run

Abstract

The Sub-Electron-Noise Skipper CCD Experimental Instrument (SENSEI) uses the recently developed Skipper-CCD technology to search for electron recoils from the interaction of sub-GeV dark matter particles with electrons in silicon. We report first results from a prototype SENSEI detector, which collected 0.019 gram-days of commissioning data above ground at Fermi National Accelerator Laboratory. These commissioning data are sufficient to set new direct-detection constraints for dark matter particles with masses between ~500 keV and 4 MeV. Moreover, since these data were taken on the surface, they disfavor previously allowed strongly interacting dark matter particles with masses between ~500 keV and a few hundred MeV. We discuss the implications of these data for several dark matter candidates, including one model proposed to explain the anomalously large 21-cm signal observed by the EDGES Collaboration. Furthermore, SENSEI is the first experiment dedicated to the search for electron recoils from dark matter, and these results demonstrate the power of the Skipper-CCD technology for dark matter searches.

Authors:
; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Contributing Org.:
[SENSEI Collaboration]
OSTI Identifier:
1463388
Alternate Identifier(s):
OSTI ID: 1436707
Report Number(s):
[arXiv:1804.00088; FERMILAB-PUB-18-116-AE-PPD]
[Journal ID: ISSN 0031-9007; PRLTAO; 061803]
Grant/Contract Number:  
[SC0017938; AC02-07CH11359]
Resource Type:
Published Article
Journal Name:
Physical Review Letters
Additional Journal Information:
[Journal Name: Physical Review Letters Journal Volume: 121 Journal Issue: 6]; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Crisler, Michael, Essig, Rouven, Estrada, Juan, Fernandez, Guillermo, Tiffenberg, Javier, Haro, Miguel Sofo, Volansky, Tomer, Yu, Tien-Tien, and SENSEI Collaboration. SENSEI: First Direct-Detection Constraints on Sub-GeV Dark Matter from a Surface Run. United States: N. p., 2018. Web. doi:10.1103/PhysRevLett.121.061803.
Crisler, Michael, Essig, Rouven, Estrada, Juan, Fernandez, Guillermo, Tiffenberg, Javier, Haro, Miguel Sofo, Volansky, Tomer, Yu, Tien-Tien, & SENSEI Collaboration. SENSEI: First Direct-Detection Constraints on Sub-GeV Dark Matter from a Surface Run. United States. doi:10.1103/PhysRevLett.121.061803.
Crisler, Michael, Essig, Rouven, Estrada, Juan, Fernandez, Guillermo, Tiffenberg, Javier, Haro, Miguel Sofo, Volansky, Tomer, Yu, Tien-Tien, and SENSEI Collaboration. Wed . "SENSEI: First Direct-Detection Constraints on Sub-GeV Dark Matter from a Surface Run". United States. doi:10.1103/PhysRevLett.121.061803.
@article{osti_1463388,
title = {SENSEI: First Direct-Detection Constraints on Sub-GeV Dark Matter from a Surface Run},
author = {Crisler, Michael and Essig, Rouven and Estrada, Juan and Fernandez, Guillermo and Tiffenberg, Javier and Haro, Miguel Sofo and Volansky, Tomer and Yu, Tien-Tien and SENSEI Collaboration},
abstractNote = {The Sub-Electron-Noise Skipper CCD Experimental Instrument (SENSEI) uses the recently developed Skipper-CCD technology to search for electron recoils from the interaction of sub-GeV dark matter particles with electrons in silicon. We report first results from a prototype SENSEI detector, which collected 0.019 gram-days of commissioning data above ground at Fermi National Accelerator Laboratory. These commissioning data are sufficient to set new direct-detection constraints for dark matter particles with masses between ~500 keV and 4 MeV. Moreover, since these data were taken on the surface, they disfavor previously allowed strongly interacting dark matter particles with masses between ~500 keV and a few hundred MeV. We discuss the implications of these data for several dark matter candidates, including one model proposed to explain the anomalously large 21-cm signal observed by the EDGES Collaboration. Furthermore, SENSEI is the first experiment dedicated to the search for electron recoils from dark matter, and these results demonstrate the power of the Skipper-CCD technology for dark matter searches.},
doi = {10.1103/PhysRevLett.121.061803},
journal = {Physical Review Letters},
number = [6],
volume = [121],
place = {United States},
year = {2018},
month = {8}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1103/PhysRevLett.121.061803

Citation Metrics:
Cited by: 27 works
Citation information provided by
Web of Science

Figures / Tables:

TABLE 1 TABLE 1: Efficiencies for the data selection cuts for events with 1 to 5 electrons. The bottom row lists the number of observed events after cuts.

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    Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.