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Title: Status of the Majorana Demonstrator

The Majorana Collaboration is constructing the Majorana Demonstrator, an ultra-low background, 40-kg modular high purity Ge detector array to search for neutrinoless double-beta decay in 76Ge. In view of the next generation of tonne-scale Ge-based neutrinoless double-beta decay searches that will probe the neutrino mass scale in the inverted-hierarchy region, a major goal of the Demonstrator is to demonstrate a path forward to achieving a background rate at or below 1 count/tonne/year in the 4 keV region of interest around the Q-value at 2039 keV. Lastly, the current status of the Demonstrator is discussed, as are plans for its completion.
Authors:
 [1] ;  [2] ;  [3] ;  [4] ;  [5] ;  [6] ;  [7] ;  [8] ;  [1] ;  [9] ;  [10] ;  [2] ;  [10] ;  [1] ;  [11] ;  [12] ;  [13] ;  [6] ;  [14] ;  [13] more »;  [6] ;  [1] ;  [1] ;  [15] ;  [14] ;  [3] ;  [10] ;  [14] ;  [9] ;  [16] ;  [17] ;  [5] ;  [3] ;  [3] ;  [1] ;  [14] ;  [9] ;  [14] ;  [2] ;  [3] ;  [14] ;  [3] ;  [2] ;  [6] ;  [14] ;  [13] ;  [1] ;  [18] ;  [2] ;  [14] ;  [7] ;  [9] ;  [10] ;  [15] ;  [7] ;  [14] ;  [6] ;  [7] ;  [19] ;  [14] ;  [6] ;  [20] ;  [15] ;  [13] ;  [7] ;  [6] ;  [5] « less
  1. Univ. of Washington, Seattle, WA (United States)
  2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  3. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
  4. Univ. of South Carolina, Columbia, SC (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  5. Institute for Theoretical and Experimental Physics, Moscow (Russia)
  6. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  7. Joint Institute for Nuclear Research, Dubna (Russia)
  8. Duke Univ., Durham, NC (United States); Triangle Univ. Nuclear Lab., Durham, NC (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. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  14. Univ. of North Carolina, Chapel Hill, NC (United States); Triangle Univ. Nuclear Lab., Durham, NC (United States)
  15. Univ. of South Carolina, Columbia, SC (United States)
  16. Black Hills State Univ., Spearfish, SD (United States)
  17. Tennessee Technological Univ., Cookeville, TN (United States)
  18. Univ. of Tennessee, Knoxville, TN (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  19. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Univ. of California, Berkeley, CA (United States)
  20. 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:
OSTI Identifier:
1248627
Report Number(s):
LA-UR--14-29703
Journal ID: ISSN 2405-6014; PII: S2405601415003612
Grant/Contract Number:
AC52-06NA25396
Type:
Accepted Manuscript
Journal Name:
Nuclear and Particle Physics Proceedings
Additional Journal Information:
Journal Volume: 265-266; Journal Issue: C; Journal ID: ISSN 2405-6014
Publisher:
Elsevier
Research Org:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS neutrinoless double-beta decay; germanium detector; majorana