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

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.

9 pages, 9 figures

References in corpus (8)

• Double Beta Decay, Majorana Neutrinos, and Neutrino Mass
• Energy density functional study of nuclear matrix elements for neutrinoless $\beta \beta$ decay
• Precision Atomic Physics Techniques for Nuclear Physics with Radioactive Beams
• Precise half-life values for two neutrino double beta decay
• Multiple-Isotope Comparison for Determining Neutrinoless Double-Beta Decay Mechanisms
• Corrections to the Neutrinoless Double-Beta-Decay Operator in the Shell Model
• Nuclear matrix element for two neutrino double beta decay from 136Xe
• Electron-capture branch of 100Tc and tests of nuclear wave functions for double-beta decays

Cited by in corpus (3)

• The TITAN in-trap decay spectroscopy facility at TRIUMF
• Precision mass measurements of magnesium isotopes and implications on the validity of the Isobaric Mass Multiplet Equation
• Sensitivity Increases for the TITAN Decay Spectroscopy Program