Improved limits on beta+EC and ECEC processes in Se-74

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21670%2F20%3A00337827" target="_blank" >RIV/68407700:21670/20:00337827 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1016/j.nuclphysa.2020.121697" target="_blank" >https://doi.org/10.1016/j.nuclphysa.2020.121697</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.nuclphysa.2020.121697" target="_blank" >10.1016/j.nuclphysa.2020.121697</a>

Result language
angličtina
Original language name
Improved limits on beta+EC and ECEC processes in Se-74
Original language description
New limits on β+EC and ECEC processes in 74Se have been obtained using a 600 cm3 HPGe detector and an external source consisting of 1600 g of a natural selenium powder. For different β+EC and ECEC transitions (to the ground and excited states) obtained limits are on the level ~(0.2-4.8)x1019 yr at 90% C.L. In particular, for the potentially resonant transition into the 1204.2 keV excited state of 74Ge a lower half-life limit of 1.1x1019 yr at 90% C.L. has been obtained. Possibility to increase the sensitivity of such measurements is discussed.
Czech name
—
Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10304 - Nuclear physics

Project
<a href="/en/project/EF16_019%2F0000766" target="_blank" >EF16_019/0000766: Engineering applications of microworld physics</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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