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

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-$\beta$ decay matrix elements.

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Cited by in corpus (5)

• Investigation of double beta decay of ${}^{100}$Mo to excited states of ${}^{100}$Ru
• Study of the $\beta$-decay of ${}^{100}$Tc with Total Absorption $\gamma$-Ray Spectroscopy
• Trapped-ion decay spectroscopy towards the determination of ground-state components of double-beta decay matrix elements
• Active neutrino oscillations and double beta decay characteristics with sterile neutrinos contributions
• Large-scale shell-model study of 2$\nu$ECEC process in ${}^{78}$Kr