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Title: Recent searches for double-electron capture of nuclei to excited states

Double electron capture has been of interest of many theoretical and experimental works as a possible extension of double beta-decay investigations. The neutrinoless double-electron capture, similarly as the neutrinoless double beta-decay may help to clarify if neutrinos are Majorana or Dirac particles. Results obtained in several double electron capture experiments are reviewed and new experiments to be carried out in deep underground laboratories using enriched sources and multidimensional HPGe-HPGe gamma-ray spectrometry with a few years of counting time are proposed, which should be able to improve half-lives limits by at least an order of magnitude.
Authors:
 [1] ;  [2] ;  [1] ;  [3]
  1. Comenius University, Mlynská dolina F1, SK-842 48 Bratislava (Slovakia)
  2. Institut für Kernphysik, Westfälische Wilhelms Universität, Münster (Germany)
  3. (Russian Federation)
Publication Date:
OSTI Identifier:
22504553
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1686; Journal Issue: 1; Conference: MEDEX'15: Workshop on calculation of double-beta-decay matrix elements, Prague (Czech Republic), 9-12 Jun 2015; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; ELECTRON CAPTURE; EXCITED STATES; GAMMA SPECTROSCOPY; HALF-LIFE; HIGH-PURITY GE DETECTORS; NEUTRINOS; NUCLEI MAJORANA FERMIONS; NEUTRINOLESS DOUBLE BETA DECAY