Published November 2016 | Version v1
Journal article

Search for Pauli exclusion principle violating atomic transitions and electron decay with a p-type point contact germanium detector

  • 1. Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA (United States)
  • 2. Pacific Northwest National Laboratory, Richland, WA (United States)
  • 3. University of South Carolina, Department of Physics and Astronomy, Columbia, SC (United States)
  • 4. Oak Ridge National Laboratory, Oak Ridge, TN (United States)
  • 5. National Research Center ''Kurchatov Institute'' Institute for Theoretical and Experimental Physics, Moscow (Russian Federation)
  • 6. Joint Institute for Nuclear Research, Dubna (Russian Federation)
  • 7. Triangle Universities Nuclear Laboratory, Durham, NC (United States)
  • 8. Duke University, Department of Physics, Durham, NC (United States)
  • 9. University of Washington, Department of Physics, Center for Experimental Nuclear Physics and Astrophysics, Seattle, WA (United States)
  • 10. South Dakota School of Mines and Technology, Rapid City, SD (United States)
  • 11. Los Alamos National Laboratory, Los Alamos, NM (United States)
  • 12. University of Tennessee, Department of Physics and Astronomy, Knoxville, TN (United States)
  • 13. Osaka University, Research Center for Nuclear Physics, Ibaraki, Osaka (Japan)
  • 14. University of North Carolina, Department of Physics and Astronomy, Chapel Hill, NC (United States)
  • 15. North Carolina State University, Department of Physics, Raleigh, NC (United States)
  • 16. University of South Dakota, Department of Physics, Vermillion, SD (United States)
  • 17. Black Hills State University, Department of Physics, Spearfish, SD (United States)
  • 18. Tennessee Tech University, Cookeville, TN (United States)
  • 19. Queen's University, Department of Physics, Engineering Physics and Astronomy, Kingston, ON (Canada)
  • 20. University of California, Department of Nuclear Engineering, Berkeley, CA (United States)

Description

A search for Pauli-exclusion-principle-violating Kα electron transitions was performed using 89.5 kg-d of data collected with a p-type point contact high-purity germanium detector operated at the Kimballton Underground Research Facility. A lower limit on the transition lifetime of 5.8 x 1030 s at 90% C.L. was set by looking for a peak at 10.6 keV resulting from the X-ray and Auger electrons present following the transition. A similar analysis was done to look for the decay of atomic K-shell electrons into neutrinos, resulting in a lower limit of 6.8 x 1030 s at 90% C.L. It is estimated that the Majorana Demonstrator, a 44 kg array of p-type point contact detectors that will search for the neutrinoless double-beta decay of 76Ge, could improve upon these exclusion limits by an order of magnitude after three years of operation. (orig.)

Availability note (English)

Available from: http://dx.doi.org/10.1140/epjc/s10052-016-4467-0

Additional details

Publishing Information

Journal Title
European Physical Journal. C, Particles and Fields (Online)
Journal Volume
76
Journal Issue
11
Journal Page Range
p. 1-5
ISSN
1434-6052

INIS