Final Result of the Majorana Demonstrator 's Search for Neutrinoless Double- β Decay in Ge 76

(Majorana Collaboration)

doi:10.1103/PhysRevLett.130.062501

Final Result of the Majorana Demonstrator 's Search for Neutrinoless Double- β Decay in Ge 76

(Majorana Collaboration)

Assistant Professorship of Dark Matter

Pacific Northwest National Laboratory
University of South Carolina
Oak Ridge National Laboratory
National Research Centre "Kurchatov Institute"
University of South Dakota
Lawrence Berkeley National Laboratory
University of North Carolina
Triangle Universities Nuclear Laboratory
North Carolina State University
Duke University
University of Washington
Stanford University
South Dakota School of Mines and Technology
Los Alamos National Laboratory
CIEMAT Energy Department
University of Tennessee
Osaka University
Williams College
Tennessee Technological University
Queen's University
Max-Planck-Institut für Physik
Universität Hamburg
Indiana University Bloomington
Joint Inst. for Nuclear Research
California Institute of Technology

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

103 Scopus citations

Abstract

The Majorana Demonstrator searched for neutrinoless double-β decay (0νββ) of Ge76 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 Ge76). 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 Qββ (0.12%), we set a half-life limit of 0νββ in Ge76 at T1/2>8.3×1025 yr (90% C.L.). This provides a range of upper limits on mββ of (113-269) meV (90% C.L.), depending on the choice of nuclear matrix elements.

Original language	English
Article number	062501
Journal	Physical Review Letters
Volume	130
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevLett.130.062501
State	Published - 10 Feb 2023

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10.1103/PhysRevLett.130.062501

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@article{183d9227f09547c3b5e3d0c471b142f9,

title = "Final Result of the Majorana Demonstrator 's Search for Neutrinoless Double- β Decay in Ge 76",

abstract = "The Majorana Demonstrator searched for neutrinoless double-β decay (0νββ) of Ge76 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 Ge76). 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 Qββ (0.12\%), we set a half-life limit of 0νββ in Ge76 at T1/2>8.3×1025 yr (90\% C.L.). This provides a range of upper limits on mββ of (113-269) meV (90\% C.L.), depending on the choice of nuclear matrix elements.",

author = "\{(Majorana Collaboration)\} and Arnquist, \{I. J.\} and Avignone, \{F. T.\} and Barabash, \{A. S.\} and Barton, \{C. J.\} and Barton, \{P. J.\} and Bhimani, \{K. H.\} and E. Blalock and B. Bos and M. Busch and M. Buuck and Caldwell, \{T. S.\} and Chan, \{Y. D.\} and Christofferson, \{C. D.\} and Chu, \{P. H.\} and Clark, \{M. L.\} and C. Cuesta and Detwiler, \{J. A.\} and Yu Efremenko and H. Ejiri and Elliott, \{S. R.\} and Giovanetti, \{G. K.\} and Green, \{M. P.\} and J. Gruszko and Guinn, \{I. S.\} and Guiseppe, \{V. E.\} and Haufe, \{C. R.\} and R. Henning and \{Hervas Aguilar\}, D. and Hoppe, \{E. W.\} and A. Hostiuc and Kidd, \{M. F.\} and I. Kim and Kouzes, \{R. T.\} and \{Lannen V\}, \{T. E.\} and A. Li and Lopez, \{A. M.\} and L{\'o}pez-Casta{\~n}o, \{J. M.\} and Martin, \{E. L.\} and Martin, \{R. D.\} and R. Massarczyk and Meijer, \{S. J.\} and S. Mertens and Oli, \{T. K.\} and G. Othman and Paudel, \{L. S.\} and W. Pettus and Poon, \{A. W.P.\} and Radford, \{D. C.\} and Reine, \{A. L.\} and K. Rielage",

note = "Publisher Copyright: {\textcopyright} 2023 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the {"}https://creativecommons.org/licenses/by/4.0/{"}Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.",

year = "2023",

month = feb,

day = "10",

doi = "10.1103/PhysRevLett.130.062501",

language = "English",

volume = "130",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "6",

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TY - JOUR

T1 - Final Result of the Majorana Demonstrator 's Search for Neutrinoless Double- β Decay in Ge 76

AU - (Majorana Collaboration)

AU - Arnquist, I. J.

AU - Avignone, F. T.

AU - Barabash, A. S.

AU - Barton, C. J.

AU - Barton, P. J.

AU - Bhimani, K. H.

AU - Blalock, E.

AU - Bos, B.

AU - Busch, M.

AU - Buuck, M.

AU - Caldwell, T. S.

AU - Chan, Y. D.

AU - Christofferson, C. D.

AU - Chu, P. H.

AU - Clark, M. L.

AU - Cuesta, C.

AU - Detwiler, J. A.

AU - Efremenko, Yu

AU - Ejiri, H.

AU - Elliott, S. R.

AU - Giovanetti, G. K.

AU - Green, M. P.

AU - Gruszko, J.

AU - Guinn, I. S.

AU - Guiseppe, V. E.

AU - Haufe, C. R.

AU - Henning, R.

AU - Hervas Aguilar, D.

AU - Hoppe, E. W.

AU - Hostiuc, A.

AU - Kidd, M. F.

AU - Kim, I.

AU - Kouzes, R. T.

AU - Lannen V, T. E.

AU - Li, A.

AU - Lopez, A. M.

AU - López-Castaño, J. M.

AU - Martin, E. L.

AU - Martin, R. D.

AU - Massarczyk, R.

AU - Meijer, S. J.

AU - Mertens, S.

AU - Oli, T. K.

AU - Othman, G.

AU - Paudel, L. S.

AU - Pettus, W.

AU - Poon, A. W.P.

AU - Radford, D. C.

AU - Reine, A. L.

AU - Rielage, K.

N1 - Publisher Copyright: © 2023 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/"Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.

PY - 2023/2/10

Y1 - 2023/2/10

N2 - The Majorana Demonstrator searched for neutrinoless double-β decay (0νββ) of Ge76 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 Ge76). 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 Qββ (0.12%), we set a half-life limit of 0νββ in Ge76 at T1/2>8.3×1025 yr (90% C.L.). This provides a range of upper limits on mββ of (113-269) meV (90% C.L.), depending on the choice of nuclear matrix elements.

AB - The Majorana Demonstrator searched for neutrinoless double-β decay (0νββ) of Ge76 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 Ge76). 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 Qββ (0.12%), we set a half-life limit of 0νββ in Ge76 at T1/2>8.3×1025 yr (90% C.L.). This provides a range of upper limits on mββ of (113-269) meV (90% C.L.), depending on the choice of nuclear matrix elements.

UR - https://www.scopus.com/pages/publications/85148461044

U2 - 10.1103/PhysRevLett.130.062501

DO - 10.1103/PhysRevLett.130.062501

M3 - Article

C2 - 36827565

AN - SCOPUS:85148461044

SN - 0031-9007

VL - 130

JO - Physical Review Letters

JF - Physical Review Letters

IS - 6

M1 - 062501

ER -

Final Result of the Majorana Demonstrator 's Search for Neutrinoless Double- β Decay in Ge 76

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