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

(EXO-200 Collaboration)

doi:10.1103/PhysRevD.107.012007

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

(EXO-200 Collaboration)

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

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
Externally published	Yes

Funding

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.

Funders	Funder number
National Science Foundation
U.S. Department of Energy
Natural Sciences and Engineering Research Council of Canada
Deutsche Forschungsgemeinschaft
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung
Chinese Academy of Sciences
Institute for Basic Science
International Science and Technology Cooperation Programme

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10.1103/PhysRevD.107.012007

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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 = "{(EXO-200 Collaboration)} and {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. Kr{\"u}cken",

note = "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.",

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

AU - (EXO-200 Collaboration)

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 - Krücken, R.

N1 - 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.

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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

AN - SCOPUS:85147419989

SN - 2470-0010

VL - 107

JO - Physical Review D

JF - Physical Review D

IS - 1

M1 - 012007

ER -

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

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