Double electron capture searches in $^{74}$Se

B. Lehnert; T. Wester; D. Degering; D. Sommer; L. Wagner; K. Zuber

doi:10.1088/0954-3899/43/8/085201

Double electron capture searches in $^{74}$Se

Nuclear Experiment 2016-07-20 v1

Authors: B. Lehnert , T. Wester , D. Degering , D. Sommer , L. Wagner , K. Zuber

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Abstract

A search for various double electron capture modes of $^{74}$ Se has been performed using an ultralow background Ge-detector in the Felsenkeller laboratory, Germany. Especially for the potentially resonant transition into the 1204.2 keV excited state of $^{74}$ Ge a lower half-life limit of $0.70\cdot 10^{19}$ yr (90% credibility) has been obtained. Serious concerns are raised about the validity of obtained $^{74}$ Se limits in some recent publications.

Keywords

nuclear excited states

Cite

@article{arxiv.1605.05976,
  title  = {Double electron capture searches in $^{74}$Se},
  author = {B. Lehnert and T. Wester and D. Degering and D. Sommer and L. Wagner and K. Zuber},
  journal= {arXiv preprint arXiv:1605.05976},
  year   = {2016}
}

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