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In-trap decay spectroscopy of radioactive nuclei at TITAN / TRIMUF for a determination of 2νββ matrix elements

Publication ,  Conference
Ettenauer, S; Brunner, T; Brodeur, M; Gallant, AT; Lapierre, A; Ringle, R; Good, M; Andreoiu, C; Delheij, P; Frekers, D; Krücken, R; Dilling, J
Published in: AIP Conference Proceedings
December 1, 2009

To extract the effective neutrino Majorana mass from an observed 0νββ decay, precise knowledge of the involved nuclear matrix element is required. This poses a challenge to nuclear structure models. In particular, calculations based on the proton-neutron Quasiparticle Random Phase Approximation show significant discrepancies with experimental electron capture (EC) rates of the intermediate nucleus even when tuned on 2νββ decay rates. However, EC branching ratios (BR) are in many cases not well known because the strengths of these decay branches are at the sensitivity limit of traditional experimental techniques. Here, we present a novel approach at TITAN / TRIUMF to measure EC-BR and to overcome shortcomings of previous methods. We also present results of a first proof-of-principle experiment which represents the very first observation of an electron capture in a Penning trap. © 2009 American Institute of Physics.

Duke Scholars

Published In

AIP Conference Proceedings

DOI

EISSN

1551-7616

ISSN

0094-243X

Publication Date

December 1, 2009

Volume

1182

Start / End Page

100 / 103
 

Citation

APA
Chicago
ICMJE
MLA
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Ettenauer, S., Brunner, T., Brodeur, M., Gallant, A. T., Lapierre, A., Ringle, R., … Dilling, J. (2009). In-trap decay spectroscopy of radioactive nuclei at TITAN / TRIMUF for a determination of 2νββ matrix elements. In AIP Conference Proceedings (Vol. 1182, pp. 100–103). https://doi.org/10.1063/1.3293761
Ettenauer, S., T. Brunner, M. Brodeur, A. T. Gallant, A. Lapierre, R. Ringle, M. Good, et al. “In-trap decay spectroscopy of radioactive nuclei at TITAN / TRIMUF for a determination of 2νββ matrix elements.” In AIP Conference Proceedings, 1182:100–103, 2009. https://doi.org/10.1063/1.3293761.
Ettenauer S, Brunner T, Brodeur M, Gallant AT, Lapierre A, Ringle R, et al. In-trap decay spectroscopy of radioactive nuclei at TITAN / TRIMUF for a determination of 2νββ matrix elements. In: AIP Conference Proceedings. 2009. p. 100–3.
Ettenauer, S., et al. “In-trap decay spectroscopy of radioactive nuclei at TITAN / TRIMUF for a determination of 2νββ matrix elements.” AIP Conference Proceedings, vol. 1182, 2009, pp. 100–03. Scopus, doi:10.1063/1.3293761.
Ettenauer S, Brunner T, Brodeur M, Gallant AT, Lapierre A, Ringle R, Good M, Andreoiu C, Delheij P, Frekers D, Krücken R, Dilling J. In-trap decay spectroscopy of radioactive nuclei at TITAN / TRIMUF for a determination of 2νββ matrix elements. AIP Conference Proceedings. 2009. p. 100–103.

Published In

AIP Conference Proceedings

DOI

EISSN

1551-7616

ISSN

0094-243X

Publication Date

December 1, 2009

Volume

1182

Start / End Page

100 / 103