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Search for Neutrinoless Double-Beta Decay with the Upgraded EXO-200 Detector.

Publication ,  Journal Article
Albert, JB; Anton, G; Badhrees, I; Barbeau, PS; Bayerlein, R; Beck, D; Belov, V; Breidenbach, M; Brunner, T; Cao, GF; Cen, WR; Chambers, C ...
Published in: Physical review letters
February 2018
Published version (DOI)

Results from a search for neutrinoless double-beta decay (0νββ) of ^{136}Xe are presented using the first year of data taken with the upgraded EXO-200 detector. Relative to previous searches by EXO-200, the energy resolution of the detector has been improved to σ/E=1.23%, the electric field in the drift region has been raised by 50%, and a system to suppress radon in the volume between the cryostat and lead shielding has been implemented. In addition, analysis techniques that improve topological discrimination between 0νββ and background events have been developed. Incorporating these hardware and analysis improvements, the median 90% confidence level 0νββ half-life sensitivity after combining with the full data set acquired before the upgrade has increased twofold to 3.7×10^{25}  yr. No statistically significant evidence for 0νββ is observed, leading to a lower limit on the 0νββ half-life of 1.8×10^{25}  yr at the 90% confidence level.

Duke Scholars

Jens Dilling
Author Jens Dilling Physics
Phillip S. Barbeau
Author Phillip S. Barbeau Physics
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Published In

Physical review letters

DOI

10.1103/physrevlett.120.072701

EISSN

1079-7114

ISSN

0031-9007

Publication Date

February 2018

Volume

120

Issue

7

Start / End Page

072701

Related Subject Headings

  • General Physics
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 40 Engineering
  • 09 Engineering
  • 02 Physical Sciences
  • 01 Mathematical Sciences
 

Citation

APA
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ICMJE
MLA
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Albert, J. B., Anton, G., Badhrees, I., Barbeau, P. S., Bayerlein, R., Beck, D., … EXO-200 Collaboration, . (2018). Search for Neutrinoless Double-Beta Decay with the Upgraded EXO-200 Detector. Physical Review Letters, 120(7), 072701. https://doi.org/10.1103/physrevlett.120.072701
Albert, J. B., G. Anton, I. Badhrees, P. S. Barbeau, R. Bayerlein, D. Beck, V. Belov, et al. “Search for Neutrinoless Double-Beta Decay with the Upgraded EXO-200 Detector.” Physical Review Letters 120, no. 7 (February 2018): 072701. https://doi.org/10.1103/physrevlett.120.072701.
Albert JB, Anton G, Badhrees I, Barbeau PS, Bayerlein R, Beck D, et al. Search for Neutrinoless Double-Beta Decay with the Upgraded EXO-200 Detector. Physical review letters. 2018 Feb;120(7):072701.
Albert, J. B., et al. “Search for Neutrinoless Double-Beta Decay with the Upgraded EXO-200 Detector.” Physical Review Letters, vol. 120, no. 7, Feb. 2018, p. 072701. Epmc, doi:10.1103/physrevlett.120.072701.
Albert JB, Anton G, Badhrees I, Barbeau PS, Bayerlein R, Beck D, Belov V, Breidenbach M, Brunner T, Cao GF, Cen WR, Chambers C, Cleveland B, Coon M, Craycraft A, Cree W, Daniels T, Danilov M, Daugherty SJ, Daughhetee J, Davis J, Delaquis S, Der Mesrobian-Kabakian A, DeVoe R, Didberidze T, Dilling J, Dolgolenko A, Dolinski MJ, Fairbank W, Farine J, Feyzbakhsh S, Fierlinger P, Fudenberg D, Gornea R, Graham K, Gratta G, Hall C, Hansen EV, Hoessl J, Hufschmidt P, Hughes M, Jamil A, Jewell MJ, Johnson A, Johnston S, Karelin A, Kaufman LJ, Koffas T, Kravitz S, Krücken R, Kuchenkov A, Kumar KS, Lan Y, Leonard DS, Li GS, Li S, Licciardi C, Lin YH, MacLellan R, Michel T, Mong B, Moore D, Murray K, Nelson R, Njoya O, Odian A, Ostrovskiy I, Piepke A, Pocar A, Retière F, Rowson PC, Russell JJ, Schmidt S, Schubert A, Sinclair D, Stekhanov V, Tarka M, Tolba T, Tsang R, Vogel P, Vuilleumier J-L, Wagenpfeil M, Waite A, Walton T, Weber M, Wen LJ, Wichoski U, Wrede G, Yang L, Yen Y-R, Zeldovich OY, Zettlemoyer J, Ziegler T, EXO-200 Collaboration. Search for Neutrinoless Double-Beta Decay with the Upgraded EXO-200 Detector. Physical review letters. 2018 Feb;120(7):072701.

Published In

Physical review letters

DOI

10.1103/physrevlett.120.072701

EISSN

1079-7114

ISSN

0031-9007

Publication Date

February 2018

Volume

120

Issue

7

Start / End Page

072701

Related Subject Headings

  • General Physics
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 40 Engineering
  • 09 Engineering
  • 02 Physical Sciences
  • 01 Mathematical Sciences