Search for MeV electron recoils from dark matter in EXO-200

doi:10.1103/PhysRevD.107.012007

Search for MeV electron recoils from dark matter in EXO-200

Physics And Astronomy

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Abstract

We present a search for electron-recoil signatures from the charged-current absorption of fermionic dark matter using the EXO-200 detector. We report an average electron-recoil background rate of 6.8×104 cts kg-1 yr-1 keV above 4 MeV and find no statistically significant excess over our background projection. Using a total Xe136 exposure of 234.1 kg yr, we exclude new parameter space for the charged-current absorption cross section for dark matter masses between mχ=2.6-11.6 MeV with a minimum of 6×1051 cm2 at 8.3 MeV at the 90% confidence level.

Original language	English
Article number	012007
Journal	Physical Review D
Volume	107
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevD.107.012007
State	Published - Jan 1 2023

Bibliographical note

Funding Information:
EXO-200 is supported by the DOE and NSF in the U.S., the NSERC in Canada, the SNF in Switzerland, the IBS in Korea, the DFG in Germany, and CAS and ISTCP in China. The EXO-200 data analysis and simulation use resources of the National Energy Research Scientific Computing Center. We gratefully acknowledge the KARMEN Collaboration for supplying the cosmic-ray veto detectors, as well as the WIPP for their hospitality.

Publisher Copyright:
© 2023 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/"Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3.

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1103/PhysRevD.107.012007

Cite this

@article{789c9e5e3db34e3f99be1f58176ec056,

title = "Search for MeV electron recoils from dark matter in EXO-200",

abstract = "We present a search for electron-recoil signatures from the charged-current absorption of fermionic dark matter using the EXO-200 detector. We report an average electron-recoil background rate of 6.8×104 cts kg-1 yr-1 keV above 4 MeV and find no statistically significant excess over our background projection. Using a total Xe136 exposure of 234.1 kg yr, we exclude new parameter space for the charged-current absorption cross section for dark matter masses between mχ=2.6-11.6 MeV with a minimum of 6×1051 cm2 at 8.3 MeV at the 90% confidence level.",

author = "{Al Kharusi}, S. and G. Anton and I. Badhrees and Barbeau, {P. S.} and D. Beck and V. Belov and T. Bhatta and M. Breidenbach and T. Brunner and Cao, {G. F.} and Cen, {W. R.} and C. Chambers and B. Cleveland and M. Coon and A. Craycraft and T. Daniels and L. Darroch and Daugherty, {S. J.} and J. Davis and S. Delaquis and {Der Mesrobian-Kabakian}, A. and R. Devoe and J. Dilling and A. Dolgolenko and Dolinski, {M. J.} and J. Echevers and W. Fairbank and D. Fairbank and J. Farine and S. Feyzbakhsh and P. Fierlinger and Fu, {Y. S.} and D. Fudenberg and P. Gautam and R. Gornea and G. Gratta and C. Hall and Hansen, {E. V.} and J. Hoessl and P. Hufschmidt and M. Hughes and A. Iverson and A. Jamil and C. Jessiman and Jewell, {M. J.} and A. Johnson and A. Karelin and Kaufman, {L. J.} and T. Koffas and R. Maclellan",

note = "Funding Information: EXO-200 is supported by the DOE and NSF in the U.S., the NSERC in Canada, the SNF in Switzerland, the IBS in Korea, the DFG in Germany, and CAS and ISTCP in China. The EXO-200 data analysis and simulation use resources of the National Energy Research Scientific Computing Center. We gratefully acknowledge the KARMEN Collaboration for supplying the cosmic-ray veto detectors, as well as the WIPP for their hospitality. Publisher Copyright: {\textcopyright} 2023 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the {"}https://creativecommons.org/licenses/by/4.0/{"}Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3.",

year = "2023",

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doi = "10.1103/PhysRevD.107.012007",

language = "English",

volume = "107",

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TY - JOUR

T1 - Search for MeV electron recoils from dark matter in EXO-200

AU - Al Kharusi, S.

AU - Anton, G.

AU - Badhrees, I.

AU - Barbeau, P. S.

AU - Beck, D.

AU - Belov, V.

AU - Bhatta, T.

AU - Breidenbach, M.

AU - Brunner, T.

AU - Cao, G. F.

AU - Cen, W. R.

AU - Chambers, C.

AU - Cleveland, B.

AU - Coon, M.

AU - Craycraft, A.

AU - Daniels, T.

AU - Darroch, L.

AU - Daugherty, S. J.

AU - Davis, J.

AU - Delaquis, S.

AU - Der Mesrobian-Kabakian, A.

AU - Devoe, R.

AU - Dilling, J.

AU - Dolgolenko, A.

AU - Dolinski, M. J.

AU - Echevers, J.

AU - Fairbank, W.

AU - Fairbank, D.

AU - Farine, J.

AU - Feyzbakhsh, S.

AU - Fierlinger, P.

AU - Fu, Y. S.

AU - Fudenberg, D.

AU - Gautam, P.

AU - Gornea, R.

AU - Gratta, G.

AU - Hall, C.

AU - Hansen, E. V.

AU - Hoessl, J.

AU - Hufschmidt, P.

AU - Hughes, M.

AU - Iverson, A.

AU - Jamil, A.

AU - Jessiman, C.

AU - Jewell, M. J.

AU - Johnson, A.

AU - Karelin, A.

AU - Kaufman, L. J.

AU - Koffas, T.

AU - Maclellan, R.

N1 - Funding Information: EXO-200 is supported by the DOE and NSF in the U.S., the NSERC in Canada, the SNF in Switzerland, the IBS in Korea, the DFG in Germany, and CAS and ISTCP in China. The EXO-200 data analysis and simulation use resources of the National Energy Research Scientific Computing Center. We gratefully acknowledge the KARMEN Collaboration for supplying the cosmic-ray veto detectors, as well as the WIPP for their hospitality. Publisher Copyright: © 2023 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/"Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3.

PY - 2023/1/1

Y1 - 2023/1/1

N2 - We present a search for electron-recoil signatures from the charged-current absorption of fermionic dark matter using the EXO-200 detector. We report an average electron-recoil background rate of 6.8×104 cts kg-1 yr-1 keV above 4 MeV and find no statistically significant excess over our background projection. Using a total Xe136 exposure of 234.1 kg yr, we exclude new parameter space for the charged-current absorption cross section for dark matter masses between mχ=2.6-11.6 MeV with a minimum of 6×1051 cm2 at 8.3 MeV at the 90% confidence level.

AB - We present a search for electron-recoil signatures from the charged-current absorption of fermionic dark matter using the EXO-200 detector. We report an average electron-recoil background rate of 6.8×104 cts kg-1 yr-1 keV above 4 MeV and find no statistically significant excess over our background projection. Using a total Xe136 exposure of 234.1 kg yr, we exclude new parameter space for the charged-current absorption cross section for dark matter masses between mχ=2.6-11.6 MeV with a minimum of 6×1051 cm2 at 8.3 MeV at the 90% confidence level.

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U2 - 10.1103/PhysRevD.107.012007

DO - 10.1103/PhysRevD.107.012007

M3 - Article

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VL - 107

IS - 1

M1 - 012007

ER -

Search for MeV electron recoils from dark matter in EXO-200

Abstract

Bibliographical note

ASJC Scopus subject areas

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