Search for Double-Beta Decay of 82Se into 82Kr Excited States Using the OBELIX Installation

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21670%2F25%3A00384172" target="_blank" >RIV/68407700:21670/25:00384172 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1134/S106377962470237X" target="_blank" >https://doi.org/10.1134/S106377962470237X</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1134/S106377962470237X" target="_blank" >10.1134/S106377962470237X</a>

Result language
angličtina
Original language name
Search for Double-Beta Decay of 82Se into 82Kr Excited States Using the OBELIX Installation
Original language description
A search for the processes of double beta decay of 82Se into excited states of 82Kr is conducted using the OBELIX setup. The measurements are conducted using a 600 cm3 HPGe detector. The detector is surrounded by 6.5 kg of enriched selenium (the content of 82Se was ~92.5%). The data collected over 17 572.2 h of measurements are given. As a result, a world-record sensitivity is reached for transitions of this type. Specifically, we have found an indication of the existence of two-neutrino 82Se decay into the first 0+82Kr excited state with a half-life of x 1022 years.
Czech name
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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
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OECD FORD branch
10304 - Nuclear physics

Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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