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Title: SENSEI: Direct-Detection Constraints on Sub-GeV Dark Matter from a Shallow Underground Run Using a Prototype Skipper CCD

Abstract

We present new direct-detection constraints on eV-to-GeV dark matter interacting with electrons using a prototype detector of the Sub-Electron-Noise Skipper-CCD Experimental Instrument. The results are based on data taken in the MINOS cavern at the Fermi National Accelerator Laboratory. We focus on data obtained with two distinct readout strategies. For the first strategy, we read out the Skipper CCD continuously, accumulating an exposure of 0.177 g day. While we observe no events containing three or more electrons, we find a large one- and two-electron background event rate, which we attribute to spurious events induced by the amplifier in the Skipper-CCD readout stage. For the second strategy, we take five sets of data in which we switch off all amplifiers while exposing the Skipper CCD for 120 ks, and then read out the data through the best prototype amplifier. We find a one-electron event rate of (3.51 ± 0.10) × 10 -3 events/pixel/day, which is almost 2 orders of magnitude lower than the one-electron event rate observed in the continuous-readout data, and a two-electron event rate of (3.18 +0.86 -0.55) × 10 -5 events/pixel/day. We again observe no events containing three or more electrons, for an exposure of 0.069 g day. We use thesemore » data to derive world-leading constraints on dark matter-electron scattering for masses between 500 keV and 5 MeV, and on dark-photon dark matter being absorbed by electrons for a range of masses below 12.4 eV.« less

Authors:
 [1];  [1];  [1];  [2];  [3];  [2];  [3];  [2];  [3];  [1];  [3];  [2];  [4];  [1];  [3];  [5];  [6]
  1. Tel-Aviv Univ., Tel-Aviv (Israel)
  2. Stony Brook Univ., Stony Brook, NY (United States)
  3. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
  4. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Univ. Nacional de Cuyo (UNCUYO) (Argentina)
  5. Tel-Aviv Univ., Tel-Aviv (Israel); The Inst. for Advanced Study, Princeton, NJ (United States)
  6. Univ. of Oregon, Eugene, OR (United States)
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:
1508679
Alternate Identifier(s):
OSTI ID: 1510808
Report Number(s):
arXiv:1901.10478; YITP-2019-01; FERMILAB-PUB-19-039-AE
Journal ID: ISSN 0031-9007; PRLTAO; 1717756
Grant/Contract Number:  
AC02-07CH11359; SC0017938
Resource Type:
Published Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 122; Journal Issue: 16; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
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

Abramoff, Orr, Barak, Liron, Bloch, Itay M., Chaplinsky, Luke, Crisler, Michael, Dawa, ., Drlica-Wagner, Alex, Essig, Rouven, Estrada, Juan, Etzion, Erez, Fernandez, Guillermo, Gift, Daniel, Sofo-Haro, Miguel, Taenzer, Joseph, Tiffenberg, Javier, Volansky, Tomer, and Yu, Tien -Tien. SENSEI: Direct-Detection Constraints on Sub-GeV Dark Matter from a Shallow Underground Run Using a Prototype Skipper CCD. United States: N. p., 2019. Web. doi:10.1103/PhysRevLett.122.161801.
Abramoff, Orr, Barak, Liron, Bloch, Itay M., Chaplinsky, Luke, Crisler, Michael, Dawa, ., Drlica-Wagner, Alex, Essig, Rouven, Estrada, Juan, Etzion, Erez, Fernandez, Guillermo, Gift, Daniel, Sofo-Haro, Miguel, Taenzer, Joseph, Tiffenberg, Javier, Volansky, Tomer, & Yu, Tien -Tien. SENSEI: Direct-Detection Constraints on Sub-GeV Dark Matter from a Shallow Underground Run Using a Prototype Skipper CCD. United States. doi:10.1103/PhysRevLett.122.161801.
Abramoff, Orr, Barak, Liron, Bloch, Itay M., Chaplinsky, Luke, Crisler, Michael, Dawa, ., Drlica-Wagner, Alex, Essig, Rouven, Estrada, Juan, Etzion, Erez, Fernandez, Guillermo, Gift, Daniel, Sofo-Haro, Miguel, Taenzer, Joseph, Tiffenberg, Javier, Volansky, Tomer, and Yu, Tien -Tien. Wed . "SENSEI: Direct-Detection Constraints on Sub-GeV Dark Matter from a Shallow Underground Run Using a Prototype Skipper CCD". United States. doi:10.1103/PhysRevLett.122.161801.
@article{osti_1508679,
title = {SENSEI: Direct-Detection Constraints on Sub-GeV Dark Matter from a Shallow Underground Run Using a Prototype Skipper CCD},
author = {Abramoff, Orr and Barak, Liron and Bloch, Itay M. and Chaplinsky, Luke and Crisler, Michael and Dawa, . and Drlica-Wagner, Alex and Essig, Rouven and Estrada, Juan and Etzion, Erez and Fernandez, Guillermo and Gift, Daniel and Sofo-Haro, Miguel and Taenzer, Joseph and Tiffenberg, Javier and Volansky, Tomer and Yu, Tien -Tien},
abstractNote = {We present new direct-detection constraints on eV-to-GeV dark matter interacting with electrons using a prototype detector of the Sub-Electron-Noise Skipper-CCD Experimental Instrument. The results are based on data taken in the MINOS cavern at the Fermi National Accelerator Laboratory. We focus on data obtained with two distinct readout strategies. For the first strategy, we read out the Skipper CCD continuously, accumulating an exposure of 0.177 g day. While we observe no events containing three or more electrons, we find a large one- and two-electron background event rate, which we attribute to spurious events induced by the amplifier in the Skipper-CCD readout stage. For the second strategy, we take five sets of data in which we switch off all amplifiers while exposing the Skipper CCD for 120 ks, and then read out the data through the best prototype amplifier. We find a one-electron event rate of (3.51 ± 0.10) × 10-3 events/pixel/day, which is almost 2 orders of magnitude lower than the one-electron event rate observed in the continuous-readout data, and a two-electron event rate of (3.18+0.86-0.55) × 10-5 events/pixel/day. We again observe no events containing three or more electrons, for an exposure of 0.069 g day. We use these data to derive world-leading constraints on dark matter-electron scattering for masses between 500 keV and 5 MeV, and on dark-photon dark matter being absorbed by electrons for a range of masses below 12.4 eV.},
doi = {10.1103/PhysRevLett.122.161801},
journal = {Physical Review Letters},
number = 16,
volume = 122,
place = {United States},
year = {2019},
month = {4}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1103/PhysRevLett.122.161801

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