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arXiv · 0809.3757

Electron-capture branch of 100Tc and tests of nuclear wave functions for double-beta decays

S. K. L. Sjue·D. Melconian·A. Garcia·I. Ahmad·A. Algora·J. Aysto·V. -V. Elomaa·T. Eronen·J. Hakala·S. Hoedl·A. Kankainen·T. Kessler·I. D. Moore·F. Naab·H. Penttila·S. Rahaman·A. Saastamoinen·H. E. Swanson·C. Weber·S. Triambak·K. Deryckx
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Abstract

We present a measurement of the electron-capture branch of $^{100}$Tc. Our value, $B(\text{EC}) = (2.6 \pm 0.4) \times 10^{-5}$, implies that the $^{100}$Mo neutrino absorption cross section to the ground state of $^{100}$Tc is roughly one third larger than previously thought. Compared to previous measurements, our value of $B(\text{EC})$ prevents a smaller disagreement with QRPA calculations relevant to double-$β$ decay matrix elements.

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S. K. L. Sjue, D. Melconian, A. Garcia, I. Ahmad, A. Algora, J. Aysto, V. -V. Elomaa, T. Eronen, J. Hakala, S. Hoedl, A. Kankainen, T. Kessler, I. D. Moore, F. Naab, H. Penttila, S. Rahaman, A. Saastamoinen, H. E. Swanson, C. Weber, S. Triambak, K. Deryckx. 2008-09-22. Electron-capture branch of 100Tc and tests of nuclear wave functions for double-beta decays. https://doi.org/10.1103/physrevc.78.064317

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