First search for \(2\varepsilon\) and \(\varepsilon\beta^+\) decay of \(^{174}\)Hf

The first ever search for \(2\varepsilon\) and \(\varepsilon\beta^+\) decay of \(^{174}\)Hf was realized using a high-pure sample of hafnium (with mass 179.8 g) and the ultra low-background HPGe-detector system located 225 m underground. After 75 days of data taking no indication of the double beta...

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Bibliographic Details
Published in:arXiv.org 2020-01
Main Authors: Danevich, F A, Hult, M, Kasperovych, D V, Kovtun, G P, Kovtun, K V, Lutter, G, Marissens, G, Polischuk, O G, Stetsenko, S P, Tretyak, V I
Format: Article
Language:English
Subjects:
Beta decay
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Summary:The first ever search for \(2\varepsilon\) and \(\varepsilon\beta^+\) decay of \(^{174}\)Hf was realized using a high-pure sample of hafnium (with mass 179.8 g) and the ultra low-background HPGe-detector system located 225 m underground. After 75 days of data taking no indication of the double beta decay transitions could be detected but lower limits for the half-lives of the different channels and modes of the decays were set on the level of \(\lim T_{1/2}\sim 10^{16}-10^{18}\) a.
ISSN:2331-8422
DOI:10.48550/arxiv.2001.06301