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

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:
 [1] ;  [2] ;  [1] ;  [1] ;  [1] ;  [1] ;  [3] ;  [4] ;  [5] ;  [6] ;  [5]
  1. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
  2. Stony Brook Univ., Stony Brook, NY (United States)
  3. (Argentina)
  4. Tel-Aviv Univ., Tel-Aviv (Israel)
  5. (United States)
  6. European Organization for Nuclear Research (CERN), Geneva (Switzerland)
Publication Date:
Report Number(s):
arXiv:1804.00088; FERMILAB-PUB-18-116-AE-PPD
Journal ID: ISSN 0031-9007; PRLTAO; 1665524
Grant/Contract Number:
AC02-07CH11359; SC0017938
Type:
Published Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 121; Journal Issue: 6; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
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 Orgs:
SENSEI Collaboration
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
OSTI Identifier:
1463388
Alternate Identifier(s):
OSTI ID: 1436707

Crisler, Michael, Essig, Rouven, Estrada, Juan, Fernandez, Guillermo, Tiffenberg, Javier, Haro, Miguel Sofo, Centro Atomico Bariloche, Bariloche, Volansky, Tomer, The Institute for Advanced Study, Princeton, NJ, Yu, Tien -Tien, and Univ. of Oregon, Eugene, OR. SENSEI: First Direct-Detection Constraints on Sub-GeV Dark Matter from a Surface Run. United States: N. p., Web. doi:10.1103/PhysRevLett.121.061803.
Crisler, Michael, Essig, Rouven, Estrada, Juan, Fernandez, Guillermo, Tiffenberg, Javier, Haro, Miguel Sofo, Centro Atomico Bariloche, Bariloche, Volansky, Tomer, The Institute for Advanced Study, Princeton, NJ, Yu, Tien -Tien, & Univ. of Oregon, Eugene, OR. 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, Centro Atomico Bariloche, Bariloche, Volansky, Tomer, The Institute for Advanced Study, Princeton, NJ, Yu, Tien -Tien, and Univ. of Oregon, Eugene, OR. 2018. "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 Centro Atomico Bariloche, Bariloche and Volansky, Tomer and The Institute for Advanced Study, Princeton, NJ and Yu, Tien -Tien and Univ. of Oregon, Eugene, OR},
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}
}