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arXiv · 1310.4248

Trapped-ion decay spectroscopy towards the determination of ground-state components of double-beta decay matrix elements

T. Brunner·A. Lapierre·C. Andreoiu·M. Brodeur·P. Delheji·S. Ettenauer·D. Frekers·A. T. Gallant·R. Gernhäuser·A. Grossheim·R. Krücken·A. Lennarz·D. Lunney·D. Mücher·R. Ringle·M. C. Simon·V. V. Simon·S. K. L. Sjue·K. Zuber·J. Dilling
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Abstract

A new technique has been developed at TRIUMF's TITAN facility to perform in-trap decay spectroscopy. The aim of this technique is to eventually measure weak electron capture branching ratios (ECBRs) and by this to consequently determine GT matrix elements of $\beta\beta$ decaying nuclei. These branching ratios provide important input to the theoretical description of these decays. The feasibility and power of the technique is demonstrated by measuring the ECBR of $^{124}$Cs.

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T. Brunner, A. Lapierre, C. Andreoiu, M. Brodeur, P. Delheji, S. Ettenauer, D. Frekers, A. T. Gallant, R. Gernhäuser, A. Grossheim, R. Krücken, A. Lennarz, D. Lunney, D. Mücher, R. Ringle, M. C. Simon, V. V. Simon, S. K. L. Sjue, K. Zuber, J. Dilling. 2013-10-16. Trapped-ion decay spectroscopy towards the determination of ground-state components of double-beta decay matrix elements. https://doi.org/10.1140/epja/i2013-13142-4

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