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Title: The MAJORANA DEMONSTRATOR: A search for neutrinoless double-beta decay of ⁷⁶Ge

Neutrinoless double-beta (0νββ) decay is a hypothesized process where in some even-even nuclei it might be possible for two neutrons to simultaneously decay into two protons and two electrons without emitting neutrinos. This is possible only if neutrinos are Majorana particles, i.e. fermions that are their own antiparticles. Neutrinos being Majorana particles would explicitly violate lepton number conservation, and might play a role in the matter-antimatter asymmetry in the universe. The observation of neutrinoless double-beta decay would also provide complementary information related to neutrino masses. The Majorana Collaboration is constructing the MAJORANA DEMONSTRATOR, with a total of 40-kg Germanium detectors, to search for the 0νββ decay of ⁷⁶Ge and to demonstrate a background rate at or below 3 counts/(ROI•t•y) in the 4 keV region of interest (ROI) around the 2039 keV Q-value for ⁷⁶Ge 0νββ decay. In this paper, we discuss the physics of neutrinoless double beta decay and then focus on the MAJORANA DEMONSTRATOR, including its design and approach to achieve ultra-low backgrounds and the status of the experiment.
Authors:
 [1] ;  [2] ;  [3] ;  [4] ;  [5] ;  [6] ;  [7] ;  [8] ;  [9] ;  [10] ;  [2] ;  [10] ;  [8] ;  [8] ;  [11] ;  [12] ;  [1] ;  [5] ;  [13] ;  [1] more »;  [5] ;  [8] ;  [8] ;  [14] ;  [13] ;  [15] ;  [10] ;  [13] ;  [9] ;  [16] ;  [17] ;  [18] ;  [15] ;  [15] ;  [8] ;  [13] ;  [9] ;  [13] ;  [2] ;  [15] ;  [13] ;  [15] ;  [2] ;  [5] ;  [13] ;  [1] ;  [8] ;  [19] ;  [1] ;  [13] ;  [6] ;  [9] ;  [10] ;  [14] ;  [13] ;  [5] ;  [20] ;  [21] ;  [13] ;  [5] ;  [22] ;  [14] ;  [6] ;  [5] ;  [4] « less
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  3. Univ. of South Carolina, Columbia, SC (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  4. Institute for Theoretical and Experimental Physics, Moscow (Russian Federation)
  5. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  6. Joint Institute for Nuclear Research, Dubna (Russian Federation)
  7. Duke Univ., Durham, NC (United States); Triangle Univ. Nuclear Lab., Durham, NC (United States)
  8. Univ. of Washington, Seattle, WA (United States)
  9. Univ. of South Dakota, Vermillion, SD (United States)
  10. South Dakota School of Mines and Technology, Rapid City, SD (United States)
  11. Univ. of Tennessee, Knoxville, TN (United States)
  12. Osaka Univ., Osaka (Japan)
  13. Univ. of North Carolina, Chapel Hill, NC (United States); Triangle Univ. Nuclear Lab., Durham, NC (United States)
  14. Univ. of South Carolina, Columbia, SC (United States)
  15. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
  16. Black Hills State Univ., Spearfish, SD (United States)
  17. Tennessee Tech Univ., Cookeville, TN (United States)
  18. Institute for Theoretical and Experimental Physics, Moscow (Russia)
  19. Univ. of Tennessee, Knoxville, TN (United States); Oak Ridge National Lab, Oak Ridge, TN (United States)
  20. Joint Institute for Nuclear Research, Dubna (Russia)
  21. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Univ. of California, Berkeley, CA (United States)
  22. Univ. of North Carolina, Chapel Hill, NC (United States); Triangle Univ. Nuclear Lab., Durham, NC (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Report Number(s):
LA-UR-15-20211
Journal ID: ISSN 1742-6588
Grant/Contract Number:
AC52-06NA25396
Type:
Accepted Manuscript
Journal Name:
Journal of Physics. Conference Series
Additional Journal Information:
Journal Volume: 606; Journal Issue: C; Journal ID: ISSN 1742-6588
Publisher:
IOP Publishing
Research Org:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org:
USDOE
Contributing Orgs:
Majorana Collaboration
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS; 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; neutrinoless double-beta decay; high-purity Germanium detector
OSTI Identifier:
1193644

Xu, W., Abgrall, N., Avignone, F. T., Barabash, A. S., Bertrand, F. E., Brudanin, V., Busch, M., Buuck, M., Byram, D., Caldwell, A. S., Chan, Y. -D., Christofferson, C. D., Cuesta, C., Detwiler, J. A., Efremenko, Yu, Ejiri, H., Elliott, S. R., Galindo-Uribarri, A., Giovanetti, G. K., Goett, J., Green, M. P., Gruszko, J., Guinn, I., Guiseppe, V. E., Henning, R., Hoppe, E. W., Howard, S., Howe, M. A., Jasinski, B. R., Keeter, K. J., Kidd, M. F., Konovalov, S. I., Kouzes, R. T., LaFerriere, B. D., Leon, J., MacMullin, J., Martin, R. D., Meijer, S. J., Mertens, S., Orrell, J. L., O'Shaughnessy, C., Overman, N. R., Poon, A. W.P., Radford, D. C., Rager, J., Rielage, K., Robertson, R. G. H., Romero-Romero, E., Ronquest, M. C., Shanks, B., Shirchenko, M., Snyder, N., Suriano, A. M., Tedeschi, D., Trimble, J. E., Varner, R. L., Vasilyev, S., Vetter, K., Vorren, K., White, B. R., Wilkerson, J. F., Wiseman, C., Yakushev, E., Yu, C. -H., and Yumatov, V.. The MAJORANA DEMONSTRATOR: A search for neutrinoless double-beta decay of ⁷⁶Ge. United States: N. p., Web. doi:10.1088/1742-6596/606/1/012004.
Xu, W., Abgrall, N., Avignone, F. T., Barabash, A. S., Bertrand, F. E., Brudanin, V., Busch, M., Buuck, M., Byram, D., Caldwell, A. S., Chan, Y. -D., Christofferson, C. D., Cuesta, C., Detwiler, J. A., Efremenko, Yu, Ejiri, H., Elliott, S. R., Galindo-Uribarri, A., Giovanetti, G. K., Goett, J., Green, M. P., Gruszko, J., Guinn, I., Guiseppe, V. E., Henning, R., Hoppe, E. W., Howard, S., Howe, M. A., Jasinski, B. R., Keeter, K. J., Kidd, M. F., Konovalov, S. I., Kouzes, R. T., LaFerriere, B. D., Leon, J., MacMullin, J., Martin, R. D., Meijer, S. J., Mertens, S., Orrell, J. L., O'Shaughnessy, C., Overman, N. R., Poon, A. W.P., Radford, D. C., Rager, J., Rielage, K., Robertson, R. G. H., Romero-Romero, E., Ronquest, M. C., Shanks, B., Shirchenko, M., Snyder, N., Suriano, A. M., Tedeschi, D., Trimble, J. E., Varner, R. L., Vasilyev, S., Vetter, K., Vorren, K., White, B. R., Wilkerson, J. F., Wiseman, C., Yakushev, E., Yu, C. -H., & Yumatov, V.. The MAJORANA DEMONSTRATOR: A search for neutrinoless double-beta decay of ⁷⁶Ge. United States. doi:10.1088/1742-6596/606/1/012004.
Xu, W., Abgrall, N., Avignone, F. T., Barabash, A. S., Bertrand, F. E., Brudanin, V., Busch, M., Buuck, M., Byram, D., Caldwell, A. S., Chan, Y. -D., Christofferson, C. D., Cuesta, C., Detwiler, J. A., Efremenko, Yu, Ejiri, H., Elliott, S. R., Galindo-Uribarri, A., Giovanetti, G. K., Goett, J., Green, M. P., Gruszko, J., Guinn, I., Guiseppe, V. E., Henning, R., Hoppe, E. W., Howard, S., Howe, M. A., Jasinski, B. R., Keeter, K. J., Kidd, M. F., Konovalov, S. I., Kouzes, R. T., LaFerriere, B. D., Leon, J., MacMullin, J., Martin, R. D., Meijer, S. J., Mertens, S., Orrell, J. L., O'Shaughnessy, C., Overman, N. R., Poon, A. W.P., Radford, D. C., Rager, J., Rielage, K., Robertson, R. G. H., Romero-Romero, E., Ronquest, M. C., Shanks, B., Shirchenko, M., Snyder, N., Suriano, A. M., Tedeschi, D., Trimble, J. E., Varner, R. L., Vasilyev, S., Vetter, K., Vorren, K., White, B. R., Wilkerson, J. F., Wiseman, C., Yakushev, E., Yu, C. -H., and Yumatov, V.. 2015. "The MAJORANA DEMONSTRATOR: A search for neutrinoless double-beta decay of ⁷⁶Ge". United States. doi:10.1088/1742-6596/606/1/012004. https://www.osti.gov/servlets/purl/1193644.
@article{osti_1193644,
title = {The MAJORANA DEMONSTRATOR: A search for neutrinoless double-beta decay of ⁷⁶Ge},
author = {Xu, W. and Abgrall, N. and Avignone, F. T. and Barabash, A. S. and Bertrand, F. E. and Brudanin, V. and Busch, M. and Buuck, M. and Byram, D. and Caldwell, A. S. and Chan, Y. -D. and Christofferson, C. D. and Cuesta, C. and Detwiler, J. A. and Efremenko, Yu and Ejiri, H. and Elliott, S. R. and Galindo-Uribarri, A. and Giovanetti, G. K. and Goett, J. and Green, M. P. and Gruszko, J. and Guinn, I. and Guiseppe, V. E. and Henning, R. and Hoppe, E. W. and Howard, S. and Howe, M. A. and Jasinski, B. R. and Keeter, K. J. and Kidd, M. F. and Konovalov, S. I. and Kouzes, R. T. and LaFerriere, B. D. and Leon, J. and MacMullin, J. and Martin, R. D. and Meijer, S. J. and Mertens, S. and Orrell, J. L. and O'Shaughnessy, C. and Overman, N. R. and Poon, A. W.P. and Radford, D. C. and Rager, J. and Rielage, K. and Robertson, R. G. H. and Romero-Romero, E. and Ronquest, M. C. and Shanks, B. and Shirchenko, M. and Snyder, N. and Suriano, A. M. and Tedeschi, D. and Trimble, J. E. and Varner, R. L. and Vasilyev, S. and Vetter, K. and Vorren, K. and White, B. R. and Wilkerson, J. F. and Wiseman, C. and Yakushev, E. and Yu, C. -H. and Yumatov, V.},
abstractNote = {Neutrinoless double-beta (0νββ) decay is a hypothesized process where in some even-even nuclei it might be possible for two neutrons to simultaneously decay into two protons and two electrons without emitting neutrinos. This is possible only if neutrinos are Majorana particles, i.e. fermions that are their own antiparticles. Neutrinos being Majorana particles would explicitly violate lepton number conservation, and might play a role in the matter-antimatter asymmetry in the universe. The observation of neutrinoless double-beta decay would also provide complementary information related to neutrino masses. The Majorana Collaboration is constructing the MAJORANA DEMONSTRATOR, with a total of 40-kg Germanium detectors, to search for the 0νββ decay of ⁷⁶Ge and to demonstrate a background rate at or below 3 counts/(ROI•t•y) in the 4 keV region of interest (ROI) around the 2039 keV Q-value for ⁷⁶Ge 0νββ decay. In this paper, we discuss the physics of neutrinoless double beta decay and then focus on the MAJORANA DEMONSTRATOR, including its design and approach to achieve ultra-low backgrounds and the status of the experiment.},
doi = {10.1088/1742-6596/606/1/012004},
journal = {Journal of Physics. Conference Series},
number = C,
volume = 606,
place = {United States},
year = {2015},
month = {5}
}