Journal
EUROPEAN PHYSICAL JOURNAL C
Volume 76, Issue 11, Pages -Publisher
SPRINGER
DOI: 10.1140/epjc/s10052-016-4467-0
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Funding
- U.S. Department of Energy, Office of Science, Office of Nuclear Physics [DE-AC02-05CH11231, DE-AC52-06NA25396, DE-FG02-97ER41041, DE-FG02-97ER41033, DE-FG02-97ER41042, DE-SC0012612, DE-FG02-10ER41715, DE-SC0010254, DE-FG02-97ER41020]
- Particle Astrophysics Program and Nuclear Physics Program of the National Science Foundation [PHY-0919270, PHY-1003940, 0855314, PHY-1202950, MRI 0923142, 1003399]
- Russian Foundation for Basic Research [15-02-02919]
- U.S. Department of Energy through the LANL/LDRD Program
- U.S. Department of Energy (DOE) [DE-SC0012612, DE-SC0010254] Funding Source: U.S. Department of Energy (DOE)
- Direct For Mathematical & Physical Scien
- Division Of Physics [1003399] Funding Source: National Science Foundation
- Division Of Physics
- Direct For Mathematical & Physical Scien [0855314] Funding Source: National Science Foundation
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A search for Pauli-exclusion-principle-violating K 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 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 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 Ge, could improve upon these exclusion limits by an order of magnitude after three years of operation.
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