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Excitations to the electronic continuum of (HeT+)-He-3 in investigations of T-2 beta-decay experiments

Doss, N; Tennyson, J; (2008) Excitations to the electronic continuum of (HeT+)-He-3 in investigations of T-2 beta-decay experiments. J PHYS B-AT MOL OPT , 41 (12) , Article 125701. 10.1088/0953-4075/41/12/125701.

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Abstract

The final-state probability distribution for excitations to the electronic continuum of (HeT+)-He-3 resulting from the beta-decay of T-2 is calculated. The R-matrix method is used to obtain a geometry dependant treatment of the resonance states of (HeT+)-He-3 allowing for nuclear motion effects of these states to be accounted for explicitly in the determination of the final-state distribution. A discretized distribution for the background continuum is used to obtain this part of the decay probability. When combined with previous studies of other energy ranges, 99.94% of the decay probability is recovered, a significant improvement on previous results.

Type: Article
Title: Excitations to the electronic continuum of (HeT+)-He-3 in investigations of T-2 beta-decay experiments
DOI: 10.1088/0953-4075/41/12/125701
Keywords: NEUTRINO MASS, TRITIUM MOLECULE, HET+, STATE, PREDISSOCIATION, DEPENDENCE, RESONANCES, SPECTRUM, ION
UCL classification: UCL > School of BEAMS > Faculty of Maths and Physical Sciences > Physics and Astronomy
UCL > School of BEAMS > Faculty of Maths and Physical Sciences > Space and Climate Physics
URI: http://discovery.ucl.ac.uk/id/eprint/16897
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