Search for Neutrinoless Double- β Decay with the Complete EXO-200 Dataset

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ID: 271454
2019
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Abstrak
A search for neutrinoless double-β decay (0νββ) in Xe136 is performed with the full EXO-200 dataset using a deep neural network to discriminate between 0νββ and background events. Relative to previous analyses, the signal detection efficiency has been raised from 80.8% to 96.4±3.0%, and the energy resolution of the detector at the Q value of Xe136 0νββ has been improved from σ/E=1.23% to 1.15±0.02% with the upgraded detector. Accounting for the new data, the median 90% confidence level 0νββ half-life sensitivity for this analysis is 5.0×1025 yr with a total Xe136 exposure of 234.1 kg yr. No statistically significant evidence for 0νββ is observed, leading to a lower limit on the 0νββ half-life of 3.5×1025 yr at the 90% confidence level.
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collaboration2019physicalsearch12 Gunakan kunci ini untuk mengutip otomatis dalam naskah saat menggunakan SciMatic Manuscript Manager atau Thesis Manager
Penulis 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,M. Danilov,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,J. Farine,S. Feyzbakhsh,P. Fierlinger,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. Piepke,A. Pocar,F. Retière,A. L. Robinson,P. C. Rowson,D. Ruddell,J. Runge,S. Schmidt,D. Sinclair,A. K. Soma,V. Stekhanov,M. Tarka,J. Todd,T. Tolba,T. I. Totev,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,EXO-200 Collaboration;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;M. Danilov;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;J. Farine;S. Feyzbakhsh;P. Fierlinger;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. Piepke;A. Pocar;F. Retière;A. L. Robinson;P. C. Rowson;D. Ruddell;J. Runge;S. Schmidt;D. Sinclair;A. K. Soma;V. Stekhanov;M. Tarka;J. Todd;T. Tolba;T. I. Totev;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;EXO-200 Collaboration;
Jurnal physical review letters
Tahun 2019
DOI
10.1103/physrevlett.123.161802
URL
https://sciprofiles.com/publication/view/1c82e71ab0d8b4d7d7327a9f85f436cb
Kata Kunci
neutrinoless double half life neural confidence level double β β decay 0νββ half exo

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