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Title: Search for Neutrinoless Double- β Decay in Ge 76 with the Majorana Demonstrator

Abstract

The Majorana Collaboration is operating an array of high purity Ge detectors to search for neutrinoless double-β decay in 76Ge. The Majorana Demonstrator comprises 44.1 kg of Ge detectors (29.7 kg enriched in 76Ge) split between two modules contained in a low background shield at the Sanford Underground Research Facility in Lead, South Dakota. In this paper, we present results from data taken during construction, commissioning, and the start of full operations. We achieve unprecedented energy resolution of 2.5 keV FWHM at Qββ and a very low background with no observed candidate events in 9.95 kg yr of enriched Ge exposure, resulting in a lower limit on the half-life of 1.9 × 1025 yr (90% C.L.). This result constrains the effective Majorana neutrino mass to below 240-520 meV, depending on the matrix elements used. In our experimental configuration with the lowest background, the background is 4.0$$+3.1\atop{-2.5}$$ counts/(FWHM t yr).

Authors:
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Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Oak Ridge Leadership Computing Facility (OLCF); Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). National Energy Research Scientific Computing Center (NERSC); Univ. of North Carolina, Chapel Hill, NC (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP); USDOE Laboratory Directed Research and Development (LDRD) Program; National Science Foundation (NSF); Russian Foundation for Basic Research; Sanford Underground Research Facility (SURF)
Contributing Org.:
Majorana Collaboration
OSTI Identifier:
1438362
Alternate Identifier(s):
OSTI ID: 1429567; OSTI ID: 1436672; OSTI ID: 1454385; OSTI ID: 1658611; OSTI ID: 1658923
Report Number(s):
LA-UR-17-29977
Journal ID: ISSN 0031-9007; PRLTAO; TRN: US1900422
Grant/Contract Number:  
AC52-06NA25396; AC02-05CH11231; FG02-97ER41041; FG02-97ER41033; FG02-97ER41042; SC0012612; FG02-10ER41715; SC0010254; FG02-97ER41020; AC05-00OR22725; MRI-0923142; PHY-0855314; PHY-0919270; PHY-1003399; PHY-1003940; PHY-1102292; PHY-1202950; PHY-1206314; PHY-1619611; PHY-7194299; 15-02-02919
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 120; Journal Issue: 13; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Atomic and Nuclear Physics; double beta decay; neutrinoless double beta decay; nuclear structure and decays; Baryon and lepton number symmetries; 73 NUCLEAR PHYSICS AND RADIATION PHYSICS

Citation Formats

Aalseth, C. E., Abgrall, N., Aguayo, E., Alvis, S. I., Amman, M., Arnquist, I. J., Avignone, F. T., Back, H. O., Barabash, A. S., Barbeau, P. S., Barton, C. J., Barton, P. J., Bertrand, F. E., Bode, T., Bos, B., Boswell, Melissa, Bradley, A. W., Brodzinski, R. L., Brudanin, V., Busch, M., Buuck, M., Caldwell, A. S., Caldwell, T. S., Chan, Y-D., Christofferson, C. D., Chu, P. -H., Collar, J. I., Combs, D. C., Cooper, R. J., Cuesta, C., Detwiler, J. A., Doe, P. J., Dunmore, J. A., Efremenko, Yu., Ejiri, H., Elliott, Steven Ray, Fast, J. E., Finnerty, P., Fraenkle, F. M., Fu, Z., Fujikawa, B. K., Fuller, E., Galindo-Uribarri, A., Gehman, V. M., Gilliss, T., Giovanetti, G. K., Goett III, John Jerome, Green, M. P., Gruszko, J., Guinn, I. S., Guiseppe, V. E., Hallin, A. L., Haufe, C. R., Hehn, L., Henning, R., Hoppe, E. W., Hossbach, T. W., Howe, M. A., Jasinski, B. R., Johnson, R. A., Keeter, K. J., Kephart, J. D., Kidd, M. F., Knecht, A., Konovalov, S. I., Kouzes, R. T., LaFerriere, B. D., Leon, J., Lesko, K. T., Leviner, L. E., Loach, J. C., Lopez, A. M., Luke, P. N., MacMullin, J., MacMullin, S., Marino, M. G., Martin, R. D., Massarczyk, Ralph, McDonald, A. B., Mei, D. -M., Meijer, S. J., Merriman, J. H., Mertens, S., Miley, H. S., Miller, M. L., Myslik, J., Orrell, J. L., O’Shaughnessy, C., Othman, G., Overman, N. R., Perumpilly, G., Pettus, W., Phillips, D. G., Poon, A. W. P., Pushkin, K., Radford, D. C., Rager, J., Reeves, J. H., Reine, A. L., Rielage, Keith Robert, Robertson, R. G. H., Ronquest, M. C., Ruof, N. W., Schubert, A. G., Shanks, B., Shirchenko, M., Snavely, K. J., Snyder, N., Steele, D., Suriano, A. M., Tedeschi, D., Tornow, W., Trimble, J. E., Varner, R. L., Vasilyev, S., Vetter, K., Vorren, K., White, Brandon R., Wilkerson, J. F., Wiseman, C., Xu, W., Yakushev, E., Yaver, H., Young, A. R., Yu, C. -H., Yumatov, V., Zhitnikov, I., Zhu, Xiaoyu Brian, and Zimmermann, S. Search for Neutrinoless Double- β Decay in Ge76 with the Majorana Demonstrator. United States: N. p., 2018. Web. doi:10.1103/PhysRevLett.120.132502.
Aalseth, C. E., Abgrall, N., Aguayo, E., Alvis, S. I., Amman, M., Arnquist, I. J., Avignone, F. T., Back, H. O., Barabash, A. S., Barbeau, P. S., Barton, C. J., Barton, P. J., Bertrand, F. E., Bode, T., Bos, B., Boswell, Melissa, Bradley, A. W., Brodzinski, R. L., Brudanin, V., Busch, M., Buuck, M., Caldwell, A. S., Caldwell, T. S., Chan, Y-D., Christofferson, C. D., Chu, P. -H., Collar, J. I., Combs, D. C., Cooper, R. J., Cuesta, C., Detwiler, J. A., Doe, P. J., Dunmore, J. A., Efremenko, Yu., Ejiri, H., Elliott, Steven Ray, Fast, J. E., Finnerty, P., Fraenkle, F. M., Fu, Z., Fujikawa, B. K., Fuller, E., Galindo-Uribarri, A., Gehman, V. M., Gilliss, T., Giovanetti, G. K., Goett III, John Jerome, Green, M. P., Gruszko, J., Guinn, I. S., Guiseppe, V. E., Hallin, A. L., Haufe, C. R., Hehn, L., Henning, R., Hoppe, E. W., Hossbach, T. W., Howe, M. A., Jasinski, B. R., Johnson, R. A., Keeter, K. J., Kephart, J. D., Kidd, M. F., Knecht, A., Konovalov, S. I., Kouzes, R. T., LaFerriere, B. D., Leon, J., Lesko, K. T., Leviner, L. E., Loach, J. C., Lopez, A. M., Luke, P. N., MacMullin, J., MacMullin, S., Marino, M. G., Martin, R. D., Massarczyk, Ralph, McDonald, A. B., Mei, D. -M., Meijer, S. J., Merriman, J. H., Mertens, S., Miley, H. S., Miller, M. L., Myslik, J., Orrell, J. L., O’Shaughnessy, C., Othman, G., Overman, N. R., Perumpilly, G., Pettus, W., Phillips, D. G., Poon, A. W. P., Pushkin, K., Radford, D. C., Rager, J., Reeves, J. H., Reine, A. L., Rielage, Keith Robert, Robertson, R. G. H., Ronquest, M. C., Ruof, N. W., Schubert, A. G., Shanks, B., Shirchenko, M., Snavely, K. J., Snyder, N., Steele, D., Suriano, A. M., Tedeschi, D., Tornow, W., Trimble, J. E., Varner, R. L., Vasilyev, S., Vetter, K., Vorren, K., White, Brandon R., Wilkerson, J. F., Wiseman, C., Xu, W., Yakushev, E., Yaver, H., Young, A. R., Yu, C. -H., Yumatov, V., Zhitnikov, I., Zhu, Xiaoyu Brian, & Zimmermann, S. Search for Neutrinoless Double- β Decay in Ge76 with the Majorana Demonstrator. United States. https://doi.org/10.1103/PhysRevLett.120.132502
Aalseth, C. E., Abgrall, N., Aguayo, E., Alvis, S. I., Amman, M., Arnquist, I. J., Avignone, F. T., Back, H. O., Barabash, A. S., Barbeau, P. S., Barton, C. J., Barton, P. J., Bertrand, F. E., Bode, T., Bos, B., Boswell, Melissa, Bradley, A. W., Brodzinski, R. L., Brudanin, V., Busch, M., Buuck, M., Caldwell, A. S., Caldwell, T. S., Chan, Y-D., Christofferson, C. D., Chu, P. -H., Collar, J. I., Combs, D. C., Cooper, R. J., Cuesta, C., Detwiler, J. A., Doe, P. J., Dunmore, J. A., Efremenko, Yu., Ejiri, H., Elliott, Steven Ray, Fast, J. E., Finnerty, P., Fraenkle, F. M., Fu, Z., Fujikawa, B. K., Fuller, E., Galindo-Uribarri, A., Gehman, V. M., Gilliss, T., Giovanetti, G. K., Goett III, John Jerome, Green, M. P., Gruszko, J., Guinn, I. S., Guiseppe, V. E., Hallin, A. L., Haufe, C. R., Hehn, L., Henning, R., Hoppe, E. W., Hossbach, T. W., Howe, M. A., Jasinski, B. R., Johnson, R. A., Keeter, K. J., Kephart, J. D., Kidd, M. F., Knecht, A., Konovalov, S. I., Kouzes, R. T., LaFerriere, B. D., Leon, J., Lesko, K. T., Leviner, L. E., Loach, J. C., Lopez, A. M., Luke, P. N., MacMullin, J., MacMullin, S., Marino, M. G., Martin, R. D., Massarczyk, Ralph, McDonald, A. B., Mei, D. -M., Meijer, S. J., Merriman, J. H., Mertens, S., Miley, H. S., Miller, M. L., Myslik, J., Orrell, J. L., O’Shaughnessy, C., Othman, G., Overman, N. R., Perumpilly, G., Pettus, W., Phillips, D. G., Poon, A. W. P., Pushkin, K., Radford, D. C., Rager, J., Reeves, J. H., Reine, A. L., Rielage, Keith Robert, Robertson, R. G. H., Ronquest, M. C., Ruof, N. W., Schubert, A. G., Shanks, B., Shirchenko, M., Snavely, K. J., Snyder, N., Steele, D., Suriano, A. M., Tedeschi, D., Tornow, W., Trimble, J. E., Varner, R. L., Vasilyev, S., Vetter, K., Vorren, K., White, Brandon R., Wilkerson, J. F., Wiseman, C., Xu, W., Yakushev, E., Yaver, H., Young, A. R., Yu, C. -H., Yumatov, V., Zhitnikov, I., Zhu, Xiaoyu Brian, and Zimmermann, S. Mon . "Search for Neutrinoless Double- β Decay in Ge76 with the Majorana Demonstrator". United States. https://doi.org/10.1103/PhysRevLett.120.132502. https://www.osti.gov/servlets/purl/1438362.
@article{osti_1438362,
title = {Search for Neutrinoless Double- β Decay in Ge76 with the Majorana Demonstrator},
author = {Aalseth, C. E. and Abgrall, N. and Aguayo, E. and Alvis, S. I. and Amman, M. and Arnquist, I. J. and Avignone, F. T. and Back, H. O. and Barabash, A. S. and Barbeau, P. S. and Barton, C. J. and Barton, P. J. and Bertrand, F. E. and Bode, T. and Bos, B. and Boswell, Melissa and Bradley, A. W. and Brodzinski, R. L. and Brudanin, V. and Busch, M. and Buuck, M. and Caldwell, A. S. and Caldwell, T. S. and Chan, Y-D. and Christofferson, C. D. and Chu, P. -H. and Collar, J. I. and Combs, D. C. and Cooper, R. J. and Cuesta, C. and Detwiler, J. A. and Doe, P. J. and Dunmore, J. A. and Efremenko, Yu. and Ejiri, H. and Elliott, Steven Ray and Fast, J. E. and Finnerty, P. and Fraenkle, F. M. and Fu, Z. and Fujikawa, B. K. and Fuller, E. and Galindo-Uribarri, A. and Gehman, V. M. and Gilliss, T. and Giovanetti, G. K. and Goett III, John Jerome and Green, M. P. and Gruszko, J. and Guinn, I. S. and Guiseppe, V. E. and Hallin, A. L. and Haufe, C. R. and Hehn, L. and Henning, R. and Hoppe, E. W. and Hossbach, T. W. and Howe, M. A. and Jasinski, B. R. and Johnson, R. A. and Keeter, K. J. and Kephart, J. D. and Kidd, M. F. and Knecht, A. and Konovalov, S. I. and Kouzes, R. T. and LaFerriere, B. D. and Leon, J. and Lesko, K. T. and Leviner, L. E. and Loach, J. C. and Lopez, A. M. and Luke, P. N. and MacMullin, J. and MacMullin, S. and Marino, M. G. and Martin, R. D. and Massarczyk, Ralph and McDonald, A. B. and Mei, D. -M. and Meijer, S. J. and Merriman, J. H. and Mertens, S. and Miley, H. S. and Miller, M. L. and Myslik, J. and Orrell, J. L. and O’Shaughnessy, C. and Othman, G. and Overman, N. R. and Perumpilly, G. and Pettus, W. and Phillips, D. G. and Poon, A. W. P. and Pushkin, K. and Radford, D. C. and Rager, J. and Reeves, J. H. and Reine, A. L. and Rielage, Keith Robert and Robertson, R. G. H. and Ronquest, M. C. and Ruof, N. W. and Schubert, A. G. and Shanks, B. and Shirchenko, M. and Snavely, K. J. and Snyder, N. and Steele, D. and Suriano, A. M. and Tedeschi, D. and Tornow, W. and Trimble, J. E. and Varner, R. L. and Vasilyev, S. and Vetter, K. and Vorren, K. and White, Brandon R. and Wilkerson, J. F. and Wiseman, C. and Xu, W. and Yakushev, E. and Yaver, H. and Young, A. R. and Yu, C. -H. and Yumatov, V. and Zhitnikov, I. and Zhu, Xiaoyu Brian and Zimmermann, S.},
abstractNote = {The Majorana Collaboration is operating an array of high purity Ge detectors to search for neutrinoless double-β decay in 76Ge. The Majorana Demonstrator comprises 44.1 kg of Ge detectors (29.7 kg enriched in 76Ge) split between two modules contained in a low background shield at the Sanford Underground Research Facility in Lead, South Dakota. In this paper, we present results from data taken during construction, commissioning, and the start of full operations. We achieve unprecedented energy resolution of 2.5 keV FWHM at Qββ and a very low background with no observed candidate events in 9.95 kg yr of enriched Ge exposure, resulting in a lower limit on the half-life of 1.9 × 1025 yr (90% C.L.). This result constrains the effective Majorana neutrino mass to below 240-520 meV, depending on the matrix elements used. In our experimental configuration with the lowest background, the background is 4.0$+3.1\atop{-2.5}$ counts/(FWHM t yr).},
doi = {10.1103/PhysRevLett.120.132502},
journal = {Physical Review Letters},
number = 13,
volume = 120,
place = {United States},
year = {2018},
month = {3}
}

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Figures / Tables:

FIG. 1. FIG. 1.: Color online. Top: The spectrum above 100 keV of all six data sets summed together with only data reduction and muon veto cuts (Black) and after all cuts (Red). Bottom: The spectrum above 100 keV after all cuts from the higher background data sets DS0 and DS5a (Black)more » compared to the data sets with lower background, DS1-4,5b (Red). Note the $γ$ background in DS0 is higher and the $\alpha$ rate is the same without pulse shape analysis. Rejection of $\alpha$s in DS5a is degraded due to noise as described in the text. Insets: The same as in the primary plots but for the 360-keV region. The blue and graded shaded regions are excluded when determining the background. The thin blue curves shows the 90% CL upper limit for 0$v$ββ at Qββ as described in the text, which corresponds to 2.04 signal counts.« less

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Review of Particle Physics
text, January 2012

  • Beringer, J.; Arguin, J.; Barnett, R.
  • Deutsches Elektronen-Synchrotron, DESY, Hamburg
  • DOI: 10.3204/phppubdb-24149

Pulse shape discrimination for GERDA Phase I data
text, January 2013


Double beta Decay Experiments
conference, January 2012

  • Barabash, A. S.
  • Proceedings of the 12th Lomonosov Conference on Elementary Particle Physics, Particle Physics at the Year of 250th Anniversary of Moscow University
  • DOI: 10.1142/9789812772657_0005

Recent Progress in Double Beta Decay
text, January 2012


Theory of neutrinoless double beta decay
text, January 2012


Experimental searches of neutrinoless double beta decay
text, January 2012


Shape and pairing fluctuations effects on neutrinoless double beta decay nuclear matrix elements
text, January 2014


High voltage testing for the MAJORANA Demonstrator
text, January 2016


The Majorana Demonstrator calibration system
text, January 2017


Discovery probability of next-generation neutrinoless double-$β$ decay experiments
text, January 2017


The Large Enriched Germanium Experiment for Neutrinoless Double Beta Decay (LEGEND)
text, January 2017


Initial Results from the Majorana Demonstrator
preprint, January 2017


Works referencing / citing this record:

CP symmetries as guiding posts: revamping tri-bi-maximal mixing. Part I
journal, March 2019

  • Chen, Peng; Chuliá, Salvador Centelles; Ding, Gui-Jun
  • Journal of High Energy Physics, Vol. 2019, Issue 3
  • DOI: 10.1007/jhep03(2019)036

Neutrino-less double beta decay experiments
journal, November 2018


Required sensitivity in the search of neutrinoless double beta decay in 124Sn
journal, September 2019


Barium Chemosensors with Dry-Phase Fluorescence for Neutrinoless Double Beta Decay
journal, October 2019


First search for 2 ε and εβ + decay of 162 Er and new limit on 2 β decay of 170 Er to the first excited level of 170 Yb
journal, July 2018

  • Belli, P.; Bernabei, R.; Boiko, R. S.
  • Journal of Physics G: Nuclear and Particle Physics, Vol. 45, Issue 9
  • DOI: 10.1088/1361-6471/aad3e3

Double beta decay experiments: present and future
journal, November 2019


Search for neutrinoless double- β decay in Ge 76 with 26 kg yr of exposure from the Majorana Demonstrator
journal, August 2019


Renormalized approach to neutrinoless double- β decay
journal, November 2019


Neutrinoless β β nuclear matrix elements using isovector spin-dipole J π = 2 data
journal, August 2018


C P symmetries as guiding posts: Revamping tribimaximal mixing. II.
journal, September 2019


Long-distance contributions to neutrinoless double beta decay π − → π + e e
journal, November 2019


Exposure-background duality in the searches of neutrinoless double beta decay
journal, January 2020


Dirac neutrino mass generation from a Majorana messenger
journal, February 2020


Low scale type I seesaw model for lepton masses and mixings
journal, February 2020

  • Hernández, A. E. Cárcamo; González, Marcela; Neill, Nicolás A.
  • Physical Review D, Vol. 101, Issue 3
  • DOI: 10.1103/physrevd.101.035005

Seesaw Dirac neutrino mass through dimension-six operators
journal, August 2018

  • Centelles Chuliá, Salvador; Srivastava, Rahul; Valle, José W. F.
  • Physical Review D, Vol. 98, Issue 3
  • DOI: 10.1103/physrevd.98.035009

Doubly-charged scalars in the type II seesaw mechanism: Fundamental symmetry tests and high-energy searches
journal, September 2018

  • Dev, P. S. Bhupal; Ramsey-Musolf, Michael J.; Zhang, Yongchao
  • Physical Review D, Vol. 98, Issue 5
  • DOI: 10.1103/physrevd.98.055013

First Results from CUORE: A Search for Lepton Number Violation via 0 ν β β Decay of Te 130
journal, March 2018


Improved Limit on Neutrinoless Double- β Decay of Ge 76 from GERDA Phase II
journal, March 2018


Final Result of CUPID-0 Phase-I in the Search for the Se 82 Neutrinoless Double- β Decay
journal, July 2019


Evidence for Rigid Triaxial Deformation in Ge 76 from a Model-Independent Analysis
journal, September 2019


Search for Neutrinoless Double- β Decay with the Complete EXO-200 Dataset
journal, October 2019


Virtual depth by active background suppression: revisiting the cosmic muon induced background of Gerda Phase II
journal, July 2018


The CUPID-Mo experiment for neutrinoless double-beta decay: performance and prospects
journal, January 2020


Nuclear transition matrix elements for neutrinoless double-β decay of 76Ge isotope within PHFB approach
journal, November 2019

  • Rath, P. K.; Kumar, A.; Chandra, R.
  • International Journal of Modern Physics E, Vol. 28, Issue 11
  • DOI: 10.1142/s0218301319500964

Neutrinoless double beta decay overview
journal, January 2019


Neutrino Mass Ordering from Oscillations and Beyond: 2018 Status and Future Prospects
journal, October 2018

  • de Salas, Pablo F.; Gariazzo, Stefano; Mena, Olga
  • Frontiers in Astronomy and Space Sciences, Vol. 5
  • DOI: 10.3389/fspas.2018.00036

Result on the Neutrinoless Double Beta Decay Search of 82Se with the CUPID-0 Experiment
journal, December 2018


The CUPID-Mo experiment for neutrinoless double-beta decay: performance and prospects
text, January 2020


CP Symmetries as Guiding Posts: Revamping Tri-Bi-Maximal Mixing-I
text, January 2018


Barium Chemosensors with Dry-Phase Fluorescence for Neutrinoless Double Beta Decay
preprint, January 2019


Search for Neutrinoless Double-Beta Decay with the Complete EXO-200 Dataset
text, January 2019


The Exposure-Background Duality in the Searches of Neutrinoless Double Beta Decay
text, January 2019


The CUPID-Mo experiment for neutrinoless double-beta decay: performance and prospects
text, January 2019


Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.