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

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dc.rights.license Attribution 4.0 International (CC BY 4.0)
dc.contributor.author Albert, J. B.
dc.contributor.author Anton, G.
dc.contributor.author Badhrees, I.
dc.contributor.author Barbeau, P. S.
dc.contributor.author Bayerlein, R.
dc.contributor.author Beck, D.
dc.contributor.author Belov, V.
dc.contributor.author Breidenbach, M.
dc.contributor.author Brunner, T.
dc.contributor.author Cao, G. F.
dc.contributor.author Cen, W. R.
dc.contributor.author Chambers, C.
dc.contributor.author Cleveland, B.
dc.contributor.author Coon, M.
dc.contributor.author Craycraft, A.
dc.contributor.author Cree, W.
dc.contributor.author Daniels, T.
dc.contributor.author Danilov, M.
dc.contributor.author Daugherty, S. J.
dc.contributor.author Daughhetee, J.
dc.contributor.author Davis, J.
dc.contributor.author Delaquis, S.
dc.contributor.author Mesrobian-Kabakian, A. Der
dc.contributor.author DeVoe, R.
dc.contributor.author Didberidze, T.
dc.contributor.author Dilling, J.
dc.contributor.author Dolgolenko, A.
dc.contributor.author Dolinski, M. J.
dc.contributor.author Fairbank, W. Jr.
dc.contributor.author Farine, J.
dc.contributor.author Feyzbakhsh, S.
dc.contributor.author Fierlinger, P.
dc.contributor.author Fudenberg, D.
dc.contributor.author Gornea, R.
dc.contributor.author Graham, K.
dc.contributor.author Gratta, G.
dc.contributor.author Hall, C.
dc.contributor.author Hansen, E. V.
dc.contributor.author Hoessl, J.
dc.contributor.author Hufschmidt, P.
dc.contributor.author Hughes, M.
dc.contributor.author Jamil, A.
dc.contributor.author Jewell, M. J.
dc.contributor.author Johnson, A.
dc.contributor.author Johnston, S.
dc.contributor.author Karelin, A.
dc.contributor.author Kaufman, L. J.
dc.contributor.author Koffas, T.
dc.contributor.author Kravitz, S.
dc.contributor.author Krücken, R.
dc.contributor.author Kuchenkov, A.
dc.contributor.author Kumar, K. S.
dc.contributor.author Lan, Y.
dc.contributor.author Leonard, D. S.
dc.contributor.author Li, G. S.
dc.contributor.author Li, S.
dc.contributor.author Licciardi, C.
dc.contributor.author Lin, Y. H.
dc.contributor.author MacLellan, R.
dc.contributor.author Michel, T.
dc.contributor.author Mong, B.
dc.contributor.author Moore, D.
dc.contributor.author Murray, K.
dc.contributor.author Nelson, R.
dc.contributor.author Njoya, O.
dc.contributor.author Odian, A.
dc.contributor.author Ostrovskiy, I.
dc.contributor.author Piepke, A.
dc.contributor.author Pocar, A.
dc.contributor.author Retière, F.
dc.contributor.author Rowson, P. C.
dc.contributor.author Russell, J. J.
dc.contributor.author Schmidt, S.
dc.contributor.author Schubert, A.
dc.contributor.author Sinclair, D.
dc.contributor.author Stekhanov, V.
dc.contributor.author Tarka, M.
dc.contributor.author Tolba, T.
dc.contributor.author Tsang, R.
dc.contributor.author Vogel, P.
dc.contributor.author Vuilleumier, J. -L.
dc.contributor.author Wagenpfeil, M.
dc.contributor.author Waite, A.
dc.contributor.author Walton, T.
dc.contributor.author Weber, M.
dc.contributor.author Wen, L. J.
dc.contributor.author Wichoski, U.
dc.contributor.author Wrede, G.
dc.contributor.author Yang, L.
dc.contributor.author Yen, Y. -R
dc.contributor.author Zeldovich, O. Ya.
dc.contributor.author Zettlemoyer, J.
dc.contributor.author Ziegler, T.
dc.date.accessioned 2019-04-02T21:05:45Z
dc.date.available 2019-04-02T21:05:45Z
dc.date.issued 2018-02-15
dc.identifier.uri http://ir.ua.edu/handle/123456789/5450
dc.description.abstract Results from a search for neutrinoless double-beta decay (0νββ) of 136Xe 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 3.7×1025  yr. No statistically significant evidence for 0νββ is observed, leading to a lower limit on the 0νββ half-life of 1.8×1025  yr at the 90% confidence level. en_US
dc.format.mimetype application/pdf
dc.rights.uri https://creativecommons.org/licenses/by/4.0/
dc.subject Neutrinoless double beta decay, nuclear astrophysics, rare decays
dc.title Search for Neutrinoless Double-Beta Decay with the Upgraded EXO-200 Detector en_US
dc.type text


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Attribution 4.0 International (CC BY 4.0) Except where otherwise noted, this item's license is described as Attribution 4.0 International (CC BY 4.0)

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