Search for Majoron-emitting modes of Xe-136 double beta decay with the complete EXO-200 dataset

Al Kharusi S, Anton G, Badhrees , 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, Mesrobian-Kabakian AD, DeVoe R, Dilling J, Dolgolenko A, Dolinski MJ, Echevers J, Fairbank W, Fairbank D, Farine J, Feyzbakhsh S, Fierlinger P, Fudenberg D, Gautam P, Gornea R, Gratta G, Hall C, Hansen E, 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 A, 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 , 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 J, Tolba T, Totev T, Tsang R, Veenstra B, Veeraraghavan V, Vogel P, Vuilleumier JL, Wagenpfeil M, Watkins J, Weber M, Wen LJ, Wichoski U, Wrede G, Wu SX, Xia Q, Yahne DR, Yang L, Yen YR, Zeldovich OY, Ziegler T (2021)

Publication Type: Journal article

Publication year: 2021

Journal

Book Volume: 104

Journal Issue: 11

DOI: 10.1103/PhysRevD.104.112002

Abstract

A search for Majoron-emitting modes of the neutrinoless double beta decay of Xe-136 is performed with the full EXO-200 dataset. This dataset consists of a total Xe-136 exposure of 234.1 kg . yr, and includes data with detector upgrades that have improved the energy threshold relative to previous searches. A lower limit of (T1/2Xe)-Xe-136 4.3 x 10(24) yr at 90% C.L. on the half-life of the spectral index n = 1 Majoron decay was obtained, a factor of 3.6 more stringent than the previous limit from EXO-200 and a factor of 1.6 more stringent than the previous best limit from KamLAND-Zen. This limit corresponds to a constraint on the Majoron-neutrino coupling constant of vertical bar < g(ee)(M))vertical bar < (0.4-0.9) x 10(-5). The lower threshold and the additional data taken resulted in a factor 8.4 improvement for the n = 7 mode compared to the previous EXO-200 search. This search provides the most stringent limits to date on the Majoron-emitting decays of Xe-136 with spectral indices n = 1, 2, 3, and 7.

Authors with CRIS profile

Involved external institutions

McGill University Canada (CA) Drexel University United States (USA) (US) National Research Centre "Kurchatov Institute" / Hациональный исследовательский центр "Курчатовский Институт" Russian Federation (RU) University of Massachusetts Amherst (UMass) United States (USA) (US) Colorado State University United States (USA) (US) Institute of High Energy Physics (IHEP) / 中国科学院高能物理研究所 China (CN) University of Alabama in Huntsville (UAH) United States (USA) (US) Carleton University Canada (CA) Stanford University United States (USA) (US) Yale University United States (USA) (US) University of California, San Diego (UC San Diego, UCSD) United States (USA) (US) Duke University United States (USA) (US) University of Illinois at Urbana-Champaign United States (USA) (US) University of South Dakota United States (USA) (US) Stanford National Accelerator Laboratory (SLAC) United States (USA) (US) Laurentian University Canada (CA) University of North Carolina Wilmington (UNCW) United States (USA) (US) TRIUMF Canada (CA) Technische Universität München (TUM) Germany (DE) University of Maryland, College Park (UMD) United States (USA) (US) Institute for Basic Science Korea, Republic of (KR) State University of New York at Albany (UNY Albany / UAlbany) United States (USA) (US) Indiana University United States (USA) (US) California Institute of Technology (Caltech) United States (USA) (US) Universität Bern Switzerland (CH)

How to cite

APA:

Al Kharusi, S., Anton, G., Badhrees, ., Barbeau, P.S., Beck, D., Belov, V.,... Ziegler, T. (2021). Search for Majoron-emitting modes of Xe-136 double beta decay with the complete EXO-200 dataset. Physical Review D, 104(11). https://doi.org/10.1103/PhysRevD.104.112002

MLA:

Al Kharusi, S., et al. "Search for Majoron-emitting modes of Xe-136 double beta decay with the complete EXO-200 dataset." Physical Review D 104.11 (2021).

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