https://doi.org/10.1140/epja/i2013-13142-4
Regular Article - Experimental Physics
Trapped-ion decay spectroscopy towards the determination of ground-state components of double-beta decay matrix elements
1
TRIUMF, Vancouver, Canada
2
Physik Department E12, Technische Universität München, D-85748, Garching, Germany
3
Department of Chemistry, Simon Fraser University, Burnaby, Canada
4
Department of Physics, University of Notre Dame, 46556, Notre Dame, IN, USA
5
Department of Physics and Astronomy, University of British Columbia, Vancouver, Canada
6
Westfälische Wilhelms-Universität Münster, D-48149, Münster, Germany
7
CSNSM-IN2P3-CNRS, Université de Paris Sud, 91405, Orsay, France
8
Fakulät für Physik und Astronomie, Ruprecht-Karls-Universität Heidelberg, D-69120, Heidelberg, Germany
9
Max-Planck-Institut für Kernphysik, D-69117, Heidelberg, Germany
10
Institut für Kern- und Teilchenphysik, Technische Universität Dresden, D-01069, Dresden, Germany
* e-mail: tbrunner@stanford.edu
Received:
20
March
2013
Accepted:
30
October
2013
Published online:
19
November
2013
A new technique has been developed at the 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 
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 124Cs .
© SIF, Springer-Verlag Berlin Heidelberg, 2013
