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

Al Kharusi S, Anton G, Badhrees I, Barbeau PS, Beck D, Belov V, Bhatta T, Breidenbach M, Brunner T, Cao GF, Cen WR, Chambers C, Cleveland B, Coon M, Craycraft A, Daniels T, Darroch L, Daugherty SJ, Davis J, Delaquis S, Der Mesrobian-Kabakian A, DeVoe R, Dilling J, Dolgolenko A, Dolinski MJ, Echevers J, Fairbank W, Fairbank D, Farine J, Feyzbakhsh S, Fierlinger P, Fu YS, Fudenberg D, Gautam P, Gornea R, Gratta G, Hall C, Hansen EV, Hößl J, Hufschmidt P, Hughes M, Iverson A, Jamil A, Jessiman C, Jewell MJ, Johnson A, Karelin A, Kaufman LJ, Koffas T, Krücken R, Kuchenkov A, Kumar KS, Lan Y, Larson DS, Lenardo BG, Leonard DS, Li GS, Li S, Li Z, Licciardi C, Lin YH, MacLellan R, Mcelroy T, Michel T, Mong B, Moore DC, Murray K, Njoya O, Nusair O, Odian A, Ostrovskiy I, Perna A, Piepke A, Pocar A, Retière F, Robinson AL, Rowson PC, Ruddell D, Runge J, Schmidt S, Sinclair D, Skarpaas K, Soma AK, Stekhanov V, Tarka M, Thibado S, Todd M, Tolba T, Totev TI, Tsang RHM, Veenstra B, Veeraraghavan V, Vogel P, Vuilleumier JL, Wagenpfeil M, Watkins J, Wen LJ, Wichoski U, Wrede G, Wu SX, Xia Q, Yahne DR, Yang L, Yen YR, Zeldovich OY, Ziegler T (2023)


Publication Language: English

Publication Type: Journal article

Publication year: 2023

Journal

Book Volume: 107

Article Number: 012007

Journal Issue: 1

DOI: 10.1103/PhysRevD.107.012007

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 x 104 cts kg-1 yr-1 keV above 4 MeV and find no statistically significant excess over our background projection. Using a total 136Xe exposure of 234.1 kg yr, we exclude new parameter space for the charged -current absorption cross section for dark matter masses between mx 1/4 2.6-11.6 MeV with a minimum of 6 x 1051 cm2 at 8.3 MeV at the 90% confidence level.

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APA:

Al Kharusi, S., Anton, G., Badhrees, I., Barbeau, P.S., Beck, D., Belov, V.,... Ziegler, T. (2023). Search for MeV electron recoils from dark matter in EXO-200. Physical Review D, 107(1). https://doi.org/10.1103/PhysRevD.107.012007

MLA:

Al Kharusi, S., et al. "Search for MeV electron recoils from dark matter in EXO-200." Physical Review D 107.1 (2023).

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