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Title: The Majorana Demonstrator Status and Initial Results

Abstract

The Majorana Collaboration is using an array of high-purity Ge detectors to search for neutrinoless double-beta decays in 76Ge. Searches for neutrinoless double-beta decay are understood to be the only viable experimental method for testing the Majorana nature of the neutrino. Observation of this decay would imply violation of lepton number, that neutrinos are Majorana in nature, and could provide information on the neutrino mass. The Majorana Demonstrator comprises 44.1 kg of p-type point-contact Ge detectors (29.7 kg enriched in 76Ge) surrounded by a low-background shield system. The experiment achieved a high efficiency of converting raw Ge material to detectors, and an unprecedented detector energy resolution of 2.5 keV FWHM at Qßß. The Majorana collaboration began taking physics data in 2016. This paper summarizes key construction aspects of the Demonstrator and shows preliminary results from initial data.

Authors:
 [1];  [2];  [3];  [4];  [5];  [6];  [1];  [7];  [8];  [9];  [2];  [10];  [11];  [12];  [13];  [2];  [14];  [12];  [15];  [16] more »;  [13];  [10];  [17];  [18];  [19];  [2];  [20];  [10];  [21];  [22]; ORCiD logo [3];  [10];  [23];  [23];  [24];  [25]; ORCiD logo [3];  [26];  [27];  [13];  [10];  [28];  [21];  [22];  [2];  [29];  [1];  [10];  [10];  [30];  [2];  [1];  [31];  [12];  [20];  [32];  [32];  [33];  [21];  [22];  [13];  [10];  [20];  [6];  [31];  [25];  [31];  [13] « less
  1. Oak Ridge National Laboratory
  2. University of Washington
  3. BATTELLE (PACIFIC NW LAB)
  4. UNIVERSITY OF S CAROLINA
  5. Institute for Theoretical and Experimental Physics
  6. University of South Dakota
  7. Max Planck Institute of Physics
  8. Joint Institure for Nuclear Research, Dubna, Russia
  9. Duke University
  10. University of North Carolina at Chapel Hill
  11. Lawrence Berkeley National Lab, Berkeley, CA
  12. South Dakota School of Mines & Technology
  13. Los Alamos National Laboratory
  14. UNIVERSITY OF WASHINGTON
  15. Oak Ridge National Laboaotry
  16. Osaka University
  17. Princeton University
  18. North Carolina State University
  19. Massachusetts Institute of Technology
  20. University of South Carolina
  21. Lawrence Berkeley National Laboratory
  22. University of North Carolina
  23. Black Hills State University
  24. Tennessee Technological University
  25. Institute for Theoretical and Experimental Physics, Moscow, Russia
  26. University of Tennessee
  27. Queensland University of Technology
  28. Technische Universitat Munchen
  29. LAWRENCE BERKELEY LAB
  30. Los Alamos National Laboratory, Los Alamos, NM
  31. Joint Institute for Nuclear Research, Dubna, Russia
  32. ORNL
  33. Joint Institute for Nuclear Research - Russia
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1508630
Report Number(s):
PNNL-SA-133241
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Conference
Resource Relation:
Conference: 16th International Symposium on Capture-Gamma Ray Spectrum and Related Topics (CGS16). EPJ Web of Conferences
Country of Publication:
France
Language:
English

Citation Formats

Yu, Chang-Hong, Alvis, S I., Arnquist, Isaac J., Avignone, Frank T., Barabash, Alexander S., Barton, C J., Bertrand, F, Bode, T, Brudanin, V., Busch, Matthew, Buuck, M, Caldwell, Tom S., Chan, Yuen-Dat, Christofferson, C D., Chu, P H., Cuesta, C, Detwiler, Jason A., Dunagan, C, Efremenko, Y, Ejiri, H, Elliott, Steven R., Gilliss, T, Giovanetti, Grahan K., Green, M, Gruszko, Julieta, Guinn, I, Guiseppe, V E., Haufe, Christopher R., Hehn, L, Henning, Reyco, Hoppe, Eric W., Howe, M. A., Keeter, K, Keeter, K, Kidd, M F., Konovalov, S, Kouzes, Richard T., Lopez, Andrew M., Martin, R D., Massarczyk, Ralph, Meijer, S J., Mertens, S, Myslik, Jordan W., Othman, G, Pettus, Walter C., Poon, Alan W., Radford, D C., Rager, J, Reine, A L., Rielage, Keith, Ruof, N W., Shanks, Benjamin E., Shirchenko, M, Suriano, Anne-Marie, Tedeschi, D, Varner, R L., Varner, R L., Vasilyev, S, Vetter, K, Vorren, Kris R., White, B R., Wilkerson, J F., Wiseman, Clint, Xu, Wenqin, Yakushev, E, Yumatov, Vladimir, Zhitnikov, I, and Zhu, B X. The Majorana Demonstrator Status and Initial Results. France: N. p., 2018. Web.
Yu, Chang-Hong, Alvis, S I., Arnquist, Isaac J., Avignone, Frank T., Barabash, Alexander S., Barton, C J., Bertrand, F, Bode, T, Brudanin, V., Busch, Matthew, Buuck, M, Caldwell, Tom S., Chan, Yuen-Dat, Christofferson, C D., Chu, P H., Cuesta, C, Detwiler, Jason A., Dunagan, C, Efremenko, Y, Ejiri, H, Elliott, Steven R., Gilliss, T, Giovanetti, Grahan K., Green, M, Gruszko, Julieta, Guinn, I, Guiseppe, V E., Haufe, Christopher R., Hehn, L, Henning, Reyco, Hoppe, Eric W., Howe, M. A., Keeter, K, Keeter, K, Kidd, M F., Konovalov, S, Kouzes, Richard T., Lopez, Andrew M., Martin, R D., Massarczyk, Ralph, Meijer, S J., Mertens, S, Myslik, Jordan W., Othman, G, Pettus, Walter C., Poon, Alan W., Radford, D C., Rager, J, Reine, A L., Rielage, Keith, Ruof, N W., Shanks, Benjamin E., Shirchenko, M, Suriano, Anne-Marie, Tedeschi, D, Varner, R L., Varner, R L., Vasilyev, S, Vetter, K, Vorren, Kris R., White, B R., Wilkerson, J F., Wiseman, Clint, Xu, Wenqin, Yakushev, E, Yumatov, Vladimir, Zhitnikov, I, & Zhu, B X. The Majorana Demonstrator Status and Initial Results. France.
Yu, Chang-Hong, Alvis, S I., Arnquist, Isaac J., Avignone, Frank T., Barabash, Alexander S., Barton, C J., Bertrand, F, Bode, T, Brudanin, V., Busch, Matthew, Buuck, M, Caldwell, Tom S., Chan, Yuen-Dat, Christofferson, C D., Chu, P H., Cuesta, C, Detwiler, Jason A., Dunagan, C, Efremenko, Y, Ejiri, H, Elliott, Steven R., Gilliss, T, Giovanetti, Grahan K., Green, M, Gruszko, Julieta, Guinn, I, Guiseppe, V E., Haufe, Christopher R., Hehn, L, Henning, Reyco, Hoppe, Eric W., Howe, M. A., Keeter, K, Keeter, K, Kidd, M F., Konovalov, S, Kouzes, Richard T., Lopez, Andrew M., Martin, R D., Massarczyk, Ralph, Meijer, S J., Mertens, S, Myslik, Jordan W., Othman, G, Pettus, Walter C., Poon, Alan W., Radford, D C., Rager, J, Reine, A L., Rielage, Keith, Ruof, N W., Shanks, Benjamin E., Shirchenko, M, Suriano, Anne-Marie, Tedeschi, D, Varner, R L., Varner, R L., Vasilyev, S, Vetter, K, Vorren, Kris R., White, B R., Wilkerson, J F., Wiseman, Clint, Xu, Wenqin, Yakushev, E, Yumatov, Vladimir, Zhitnikov, I, and Zhu, B X. Wed . "The Majorana Demonstrator Status and Initial Results". France.
@article{osti_1508630,
title = {The Majorana Demonstrator Status and Initial Results},
author = {Yu, Chang-Hong and Alvis, S I. and Arnquist, Isaac J. and Avignone, Frank T. and Barabash, Alexander S. and Barton, C J. and Bertrand, F and Bode, T and Brudanin, V. and Busch, Matthew and Buuck, M and Caldwell, Tom S. and Chan, Yuen-Dat and Christofferson, C D. and Chu, P H. and Cuesta, C and Detwiler, Jason A. and Dunagan, C and Efremenko, Y and Ejiri, H and Elliott, Steven R. and Gilliss, T and Giovanetti, Grahan K. and Green, M and Gruszko, Julieta and Guinn, I and Guiseppe, V E. and Haufe, Christopher R. and Hehn, L and Henning, Reyco and Hoppe, Eric W. and Howe, M. A. and Keeter, K and Keeter, K and Kidd, M F. and Konovalov, S and Kouzes, Richard T. and Lopez, Andrew M. and Martin, R D. and Massarczyk, Ralph and Meijer, S J. and Mertens, S and Myslik, Jordan W. and Othman, G and Pettus, Walter C. and Poon, Alan W. and Radford, D C. and Rager, J and Reine, A L. and Rielage, Keith and Ruof, N W. and Shanks, Benjamin E. and Shirchenko, M and Suriano, Anne-Marie and Tedeschi, D and Varner, R L. and Varner, R L. and Vasilyev, S and Vetter, K and Vorren, Kris R. and White, B R. and Wilkerson, J F. and Wiseman, Clint and Xu, Wenqin and Yakushev, E and Yumatov, Vladimir and Zhitnikov, I and Zhu, B X.},
abstractNote = {The Majorana Collaboration is using an array of high-purity Ge detectors to search for neutrinoless double-beta decays in 76Ge. Searches for neutrinoless double-beta decay are understood to be the only viable experimental method for testing the Majorana nature of the neutrino. Observation of this decay would imply violation of lepton number, that neutrinos are Majorana in nature, and could provide information on the neutrino mass. The Majorana Demonstrator comprises 44.1 kg of p-type point-contact Ge detectors (29.7 kg enriched in 76Ge) surrounded by a low-background shield system. The experiment achieved a high efficiency of converting raw Ge material to detectors, and an unprecedented detector energy resolution of 2.5 keV FWHM at Qßß. The Majorana collaboration began taking physics data in 2016. This paper summarizes key construction aspects of the Demonstrator and shows preliminary results from initial data.},
doi = {},
journal = {},
number = ,
volume = ,
place = {France},
year = {2018},
month = {5}
}

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