Search for two-neutrino double-beta decay of 136Xe to the excited state of 136Ba with the complete EXO-200 dataset

S. Al Kharusi; G. Anton; I. Badhrees; P. S. Barbeau; D. Beck; V. Belov; T. Bhatta; M. Breidenbach; T. Brunner; G. F. Cao; W. R. Cen; C. Chambers; B. Cleveland; M. Coon; A. Craycraft; T. Daniels; L. Darroch; S. J. Daugherty; J. Davis; S. Delaquis; A. Der Mesrobian-Kabakian; R. Devoe; J. Dilling; A. Dolgolenko; M. J. Dolinski; J. Echevers; W. Fairbank; D. Fairbank; J. Farine; S. Feyzbakhsh; P. Fierlinger; Y. S. Fu; D. Fudenberg; P. Gautam; R. Gornea; G. Gratta; C. Hall; E. V. Hansen; J. Hoessl; P. Hufschmidt; M. Hughes; A. Iverson; A. Jamil; C. Jessiman; M. J. Jewell; A. Johnson; A. Karelin; L. J. Kaufman; T. Koffas; R. Krücken; A. Kuchenkov; K. S. Kumar; Y. Lan; A. Larson; B. G. Lenardo; D. S. Leonard; G. S. Li; S. Li; Z. Li; C. Licciardi; Y. H. Lin; R. MacLellan; T. McElroy; T. Michel; B. Mong; D. C. Moore; K. Murray; O. Njoya; O. Nusair; A. Odian; I. Ostrovskiy; A. Perna; A. Piepke; A. Pocar; F. Retière; A. L. Robinson; P. C. Rowson; J. Runge; S. Schmidt; D. Sinclair; K. Skarpaas; A. K. Soma; V. Stekhanov; M. Tarka; S. Thibado; J. Todd; T. Tolba; T. I. Totev; R. Tsang; B. Veenstra; V. Veeraraghavan; P. Vogel; J. L. Vuilleumier; M. Wagenpfeil; J. Watkins; M. Weber; L. J. Wen; U. Wichoski; G. Wrede; S. X. Wu; Q. Xia; D. R. Yahne; L. Yang; Y. R. Yen; O. Ya Zeldovich; T. Ziegler

doi:10.1088/1674-1137/aceee3

Search for two-neutrino double-beta decay of ¹³⁶Xe to the excited state of ¹³⁶Ba with the complete EXO-200 dataset

S. Al Kharusi
, G. Anton
, I. Badhrees
, P. S. Barbeau
, D. Beck
, V. Belov
, T. Bhatta
, M. Breidenbach
, T. Brunner
, G. F. Cao
, W. R. Cen
, C. Chambers
, B. Cleveland
, M. Coon
, A. Craycraft
, T. Daniels
, L. Darroch
, S. J. Daugherty
, J. Davis
, S. Delaquis

A. Der Mesrobian-Kabakian, R. Devoe, J. Dilling, A. Dolgolenko, M. J. Dolinski, J. Echevers, W. Fairbank, D. Fairbank, J. Farine, S. Feyzbakhsh, P. Fierlinger, Y. S. Fu, D. Fudenberg, P. Gautam, R. Gornea, G. Gratta, C. Hall, E. V. Hansen, J. Hoessl, P. Hufschmidt, M. Hughes, A. Iverson, A. Jamil, C. Jessiman, M. J. Jewell, A. Johnson, A. Karelin, L. J. Kaufman, T. Koffas, R. Krücken, A. Kuchenkov, K. S. Kumar, Y. Lan, A. Larson, B. G. Lenardo, D. S. Leonard, G. S. Li, S. Li, Z. Li, C. Licciardi, Y. H. Lin, R. MacLellan, T. McElroy, T. Michel, B. Mong, D. C. Moore, K. Murray, O. Njoya, O. Nusair, A. Odian, I. Ostrovskiy, A. Perna, A. Piepke, A. Pocar, F. Retière, A. L. Robinson, P. C. Rowson, J. Runge, S. Schmidt, D. Sinclair, K. Skarpaas, A. K. Soma, V. Stekhanov, M. Tarka, S. Thibado, J. Todd, T. Tolba, T. I. Totev, R. Tsang, B. Veenstra, V. Veeraraghavan, P. Vogel, J. L. Vuilleumier, M. Wagenpfeil, J. Watkins, M. Weber, L. J. Wen, U. Wichoski, G. Wrede, S. X. Wu, Q. Xia, D. R. Yahne, L. Yang, Y. R. Yen, O. Ya Zeldovich, T. Ziegler

McGill University and Génome Québec Innovation Centre
Friedrich Alexander Universität Erlangen-Nürnberg
Carleton University
King Abdulaziz City for Science and Technology
Triangle Universities Nuclear Laboratory
University of Illinois at Urbana-Champaign
ITEP
University of South Dakota
University of Kentucky
Stanford University
TRIUMF
Institute of High Energy Physics Chinese Academy of Science
Witmem Technology Co. Ltd.
Laurentian University
SNOLAB
Colorado State University
University of North Carolina Wilmington
Indiana University Bloomington
Commissariat À l'Energie Atomique et Auxénergies Alternatives
University of California at Berkeley
Drexel University
Qventus
University of Massachusetts Amherst
Cluster of Excellence E-conversion
University of Virginia
University of Maryland
Princeton University
Physics Dept., University of Alabama
Yale University
University of California, San Diego
Institute for Basic Science, Daejeon
University of California at Santa Cruz
SUNY
Universität Hamburg
Iowa State University
Descartes Labs, Inc.
California Institute of Technology
University of Bern
Canon Medical Research US Inc.
Lawrence Berkeley National Laboratory
National Research Centre "Kurchatov Institute"

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

7 Scopus citations

Abstract

A new search for two-neutrino double-beta (2νββ) decay of ¹³⁶Xe to the excited state of ¹³⁶Ba is performed with the full EXO-200 dataset. A deep learning-based convolutional neural network is used to discriminate signal from background events. Signal detection efficiency is increased relative to previous searches by EXO-200 by more than a factor of two. With the addition of the Phase II dataset taken with an upgraded detector, the median 90% confidence level half-life sensitivity of 2νββ decay to the state of ¹³⁶Ba is yr using a total ¹³⁶Xe exposure of 234.1 kg yr. No statistically significant evidence for 2νββ decay to the state is observed, leading to a lower limit of yr at 90% confidence level, improved by 70% relative to the current world's best constraint.

Original language	English
Article number	103001
Journal	Chinese Physics C
Volume	47
Issue number	10
DOIs	https://doi.org/10.1088/1674-1137/aceee3
State	Published - Oct 2023
Externally published	Yes

Keywords

EXO-200 experiment
excited state
neutrinoless double beta decay

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10.1088/1674-1137/aceee3

Cite this

Al Kharusi, S., Anton, G., Badhrees, I., Barbeau, P. S., Beck, D., Belov, V., Bhatta, T., Breidenbach, M., Brunner, T., Cao, G. F., Cen, W. R., Chambers, C., Cleveland, B., Coon, M., Craycraft, A., Daniels, T., Darroch, L., Daugherty, S. J., Davis, J., ... Ziegler, T. (2023). Search for two-neutrino double-beta decay of ¹³⁶Xe to the excited state of ¹³⁶Ba with the complete EXO-200 dataset. Chinese Physics C, 47(10), Article 103001. https://doi.org/10.1088/1674-1137/aceee3

@article{47b9487539dd4e468de4dc4d21edf459,

title = "Search for two-neutrino double-beta decay of 136Xe to the excited state of 136Ba with the complete EXO-200 dataset",

abstract = "A new search for two-neutrino double-beta (2νββ) decay of 136Xe to the excited state of 136Ba is performed with the full EXO-200 dataset. A deep learning-based convolutional neural network is used to discriminate signal from background events. Signal detection efficiency is increased relative to previous searches by EXO-200 by more than a factor of two. With the addition of the Phase II dataset taken with an upgraded detector, the median 90\% confidence level half-life sensitivity of 2νββ decay to the state of 136Ba is yr using a total 136Xe exposure of 234.1 kg yr. No statistically significant evidence for 2νββ decay to the state is observed, leading to a lower limit of yr at 90\% confidence level, improved by 70\% relative to the current world's best constraint.",

keywords = "EXO-200 experiment, excited state, neutrinoless double beta decay",

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. Kr{\"u}cken and A. Kuchenkov and Kumar, \{K. S.\} and Y. Lan and A. Larson and Lenardo, \{B. G.\} and Leonard, \{D. S.\} and Li, \{G. S.\} and S. Li and Z. Li and C. Licciardi and Lin, \{Y. H.\} and R. MacLellan and T. McElroy and T. Michel and B. Mong and Moore, \{D. C.\} and K. Murray and O. Njoya and O. Nusair and A. Odian and I. Ostrovskiy and A. Perna and A. Piepke and A. Pocar and F. Reti{\`e}re and Robinson, \{A. L.\} and Rowson, \{P. C.\} and J. Runge and S. Schmidt and D. Sinclair and K. Skarpaas and Soma, \{A. K.\} and V. Stekhanov and M. Tarka and S. Thibado and J. Todd and T. Tolba and Totev, \{T. I.\} and R. Tsang and B. Veenstra and V. Veeraraghavan and P. Vogel and Vuilleumier, \{J. L.\} and M. Wagenpfeil and J. Watkins and M. Weber and Wen, \{L. J.\} and U. Wichoski and G. Wrede and Wu, \{S. X.\} and Q. Xia and Yahne, \{D. R.\} and L. Yang and Yen, \{Y. R.\} and Zeldovich, \{O. Ya\} and T. Ziegler",

note = "Publisher Copyright: {\textcopyright} 2023 Chinese Physical Society and the Institute of High Energy Physics of the Chinese Academy of Sciences and the Institute of Modern Physics of the Chinese Academy of Sciences and IOP Publishing Ltd.",

year = "2023",

month = oct,

doi = "10.1088/1674-1137/aceee3",

language = "English",

volume = "47",

journal = "Chinese Physics C",

issn = "1674-1137",

publisher = "Institute of Physics",

number = "10",

}

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, Hoessl, 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, I, Perna, A, Piepke, A, Pocar, A, Retière, F, Robinson, AL, Rowson, PC, Runge, J, Schmidt, S, Sinclair, D, Skarpaas, K, Soma, AK, Stekhanov, V, Tarka, M, Thibado, S, Todd, J, Tolba, T, Totev, TI, 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 2023, 'Search for two-neutrino double-beta decay of ¹³⁶Xe to the excited state of ¹³⁶Ba with the complete EXO-200 dataset', Chinese Physics C, vol. 47, no. 10, 103001. https://doi.org/10.1088/1674-1137/aceee3

TY - JOUR

T1 - Search for two-neutrino double-beta decay of 136Xe to the excited state of 136Ba with the complete EXO-200 dataset

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.

AU - Kuchenkov, A.

AU - Kumar, K. S.

AU - Lan, Y.

AU - Larson, A.

AU - Lenardo, B. G.

AU - Leonard, D. S.

AU - Li, G. S.

AU - Li, S.

AU - Li, Z.

AU - Licciardi, C.

AU - Lin, Y. H.

AU - MacLellan, R.

AU - McElroy, T.

AU - Michel, T.

AU - Mong, B.

AU - Moore, D. C.

AU - Murray, K.

AU - Njoya, O.

AU - Nusair, O.

AU - Odian, A.

AU - Ostrovskiy, I.

AU - Perna, A.

AU - Piepke, A.

AU - Pocar, A.

AU - Retière, F.

AU - Robinson, A. L.

AU - Rowson, P. C.

AU - Runge, J.

AU - Schmidt, S.

AU - Sinclair, D.

AU - Skarpaas, K.

AU - Soma, A. K.

AU - Stekhanov, V.

AU - Tarka, M.

AU - Thibado, S.

AU - Todd, J.

AU - Tolba, T.

AU - Totev, T. I.

AU - Tsang, R.

AU - Veenstra, B.

AU - Veeraraghavan, V.

AU - Vogel, P.

AU - Vuilleumier, J. L.

AU - Wagenpfeil, M.

AU - Watkins, J.

AU - Weber, M.

AU - Wen, L. J.

AU - Wichoski, U.

AU - Wrede, G.

AU - Wu, S. X.

AU - Xia, Q.

AU - Yahne, D. R.

AU - Yang, L.

AU - Yen, Y. R.

AU - Zeldovich, O. Ya

AU - Ziegler, T.

N1 - Publisher Copyright: © 2023 Chinese Physical Society and the Institute of High Energy Physics of the Chinese Academy of Sciences and the Institute of Modern Physics of the Chinese Academy of Sciences and IOP Publishing Ltd.

PY - 2023/10

Y1 - 2023/10

N2 - A new search for two-neutrino double-beta (2νββ) decay of 136Xe to the excited state of 136Ba is performed with the full EXO-200 dataset. A deep learning-based convolutional neural network is used to discriminate signal from background events. Signal detection efficiency is increased relative to previous searches by EXO-200 by more than a factor of two. With the addition of the Phase II dataset taken with an upgraded detector, the median 90% confidence level half-life sensitivity of 2νββ decay to the state of 136Ba is yr using a total 136Xe exposure of 234.1 kg yr. No statistically significant evidence for 2νββ decay to the state is observed, leading to a lower limit of yr at 90% confidence level, improved by 70% relative to the current world's best constraint.

AB - A new search for two-neutrino double-beta (2νββ) decay of 136Xe to the excited state of 136Ba is performed with the full EXO-200 dataset. A deep learning-based convolutional neural network is used to discriminate signal from background events. Signal detection efficiency is increased relative to previous searches by EXO-200 by more than a factor of two. With the addition of the Phase II dataset taken with an upgraded detector, the median 90% confidence level half-life sensitivity of 2νββ decay to the state of 136Ba is yr using a total 136Xe exposure of 234.1 kg yr. No statistically significant evidence for 2νββ decay to the state is observed, leading to a lower limit of yr at 90% confidence level, improved by 70% relative to the current world's best constraint.

KW - EXO-200 experiment

KW - excited state

KW - neutrinoless double beta decay

UR - https://www.scopus.com/pages/publications/85175428576

U2 - 10.1088/1674-1137/aceee3

DO - 10.1088/1674-1137/aceee3

M3 - Article

AN - SCOPUS:85175428576

SN - 1674-1137

VL - 47

JO - Chinese Physics C

JF - Chinese Physics C

IS - 10

M1 - 103001

ER -

Search for two-neutrino double-beta decay of ¹³⁶Xe to the excited state of ¹³⁶Ba with the complete EXO-200 dataset

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Keywords

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