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Final Result of the Majorana Demonstrator's Search for Neutrinoless Double-ß Decay in
Arnquist, I J; Avignone, F T; Barabash, A S; Barton, C J; Barton, P J; Bhimani, K H; Blalock, E; Bos, B; Busch, M; Buuck, M; Caldwell, T S; Chan, Y-D; Christofferson, C D; Chu, P-H; Clark, M L; Cuesta, C; Detwiler, J A; Efremenko, Yu; Ejiri, H; Elliott, S R; Giovanetti, G K; Green, M P; Gruszko, J; Guinn, I S; Guiseppe, V E; Haufe, C R; Henning, R; Hervas Aguilar, D; Hoppe, E W; Hostiuc, A; Kidd, M F; Kim, I; Kouzes, R T; Lannen V, T E; Li, A; Lopez, A M; López-Castaño, J M; Martin, E L; Martin, R D; Massarczyk, R; Meijer, S J; Mertens, S; Oli, T K; Othman, G; Paudel, L S; Pettus, W; Poon, A W P; Radford, D C; Reine, A L; Rielage, K.
Affiliation
  • Arnquist IJ; Pacific Northwest National Laboratory, Richland, Washington 99354, USA.
  • Avignone FT; Department of Physics and Astronomy, University of South Carolina, Columbia, South Carolina 29208, USA.
  • Barabash AS; Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, USA.
  • Barton CJ; National Research Center "Kurchatov Institute" Institute for Theoretical and Experimental Physics, Moscow, 117218 Russia.
  • Barton PJ; Department of Physics, University of South Dakota, Vermillion, South Dakota 57069, USA.
  • Bhimani KH; Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA.
  • Blalock E; Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27514, USA.
  • Bos B; Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA.
  • Busch M; Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA.
  • Buuck M; Department of Physics, North Carolina State University, Raleigh, North Carolina 27695, USA.
  • Caldwell TS; Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27514, USA.
  • Chan YD; Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA.
  • Christofferson CD; Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA.
  • Chu PH; Department of Physics, Duke University, Durham, North Carolina 27708, USA.
  • Clark ML; Center for Experimental Nuclear Physics and Astrophysics, and Department of Physics, University of Washington, Seattle, Washington 98195, USA.
  • Cuesta C; Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27514, USA.
  • Detwiler JA; Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA.
  • Efremenko Y; Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA.
  • Ejiri H; South Dakota Mines, Rapid City, South Dakota 57701, USA.
  • Elliott SR; Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
  • Giovanetti GK; Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27514, USA.
  • Green MP; Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA.
  • Gruszko J; Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas, CIEMAT, 28040 Madrid, Spain.
  • Guinn IS; Center for Experimental Nuclear Physics and Astrophysics, and Department of Physics, University of Washington, Seattle, Washington 98195, USA.
  • Guiseppe VE; Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, USA.
  • Haufe CR; Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37916, USA.
  • Henning R; Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan.
  • Hervas Aguilar D; Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
  • Hoppe EW; Physics Department, Williams College, Williamstown, Massachusetts 01267, USA.
  • Hostiuc A; Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, USA.
  • Kidd MF; Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA.
  • Kim I; Department of Physics, North Carolina State University, Raleigh, North Carolina 27695, USA.
  • Kouzes RT; Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27514, USA.
  • Lannen V TE; Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA.
  • Li A; Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27514, USA.
  • Lopez AM; Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA.
  • López-Castaño JM; Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, USA.
  • Martin EL; Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27514, USA.
  • Martin RD; Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA.
  • Massarczyk R; Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27514, USA.
  • Meijer SJ; Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA.
  • Mertens S; Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27514, USA.
  • Oli TK; Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA.
  • Othman G; Pacific Northwest National Laboratory, Richland, Washington 99354, USA.
  • Paudel LS; Center for Experimental Nuclear Physics and Astrophysics, and Department of Physics, University of Washington, Seattle, Washington 98195, USA.
  • Pettus W; Tennessee Tech University, Cookeville, Tennessee 38505, USA.
  • Poon AWP; Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
  • Radford DC; Pacific Northwest National Laboratory, Richland, Washington 99354, USA.
  • Reine AL; Department of Physics and Astronomy, University of South Carolina, Columbia, South Carolina 29208, USA.
  • Rielage K; Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27514, USA.
Phys Rev Lett ; 130(6): 062501, 2023 Feb 10.
Article in En | MEDLINE | ID: mdl-36827565
ABSTRACT
The Majorana Demonstrator searched for neutrinoless double-ß decay (0νßß) of ^{76}Ge using modular arrays of high-purity Ge detectors operated in vacuum cryostats in a low-background shield. The arrays operated with up to 40.4 kg of detectors (27.2 kg enriched to ∼88% in ^{76}Ge). From these measurements, the Demonstrator has accumulated 64.5 kg yr of enriched active exposure. With a world-leading energy resolution of 2.52 keV FWHM at the 2039 keV Q_{ßß} (0.12%), we set a half-life limit of 0νßß in ^{76}Ge at T_{1/2}>8.3×10^{25} yr (90% C.L.). This provides a range of upper limits on m_{ßß} of (113-269) meV (90% C.L.), depending on the choice of nuclear matrix elements.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Phys Rev Lett Year: 2023 Document type: Article Affiliation country: Estados Unidos
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Phys Rev Lett Year: 2023 Document type: Article Affiliation country: Estados Unidos