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DOE OSTI · 2439555

Construction of St. Benedict

Brodeur, M.·Ahn, T.·Bardayan, D. W.·Burdette, D. P.·Clark, J. A.·Gallant, A. T.·Kolata, J. J.·Liu, B.·O’Malley, P. D.·Porter, W. S.·Ringle, R.·Rivero, F.·Savard, G.·Valverde, A. A.·Zite, R.
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Abstract

The Superallowed Transition Beta-Neutrino Decay Ion Coincidence Trap (St. Benedict) is currently under construction at the University of Notre Dame Nuclear Science Laboratory. It is designed to measure the beta-neutrino angular correlation parameter in superallowed mixed beta-decay transitions between mirror nuclei in order to extract the Fermi-to-Gamow Teller mixing ratio and test theoretical corrections entering in the determination of the V ud element of the Cabibbo–Kobayashi–Maskawa quark mixing matrix. St. Benedict includes a large volume gas catcher to thermalize the radioactive ion beam from TwinSol, a differentially-pumped extraction system, a radiofrequency quadrupole ion cooler and buncher, and a Paul trap for the observation and detection of the β decay products. Finally, the status of each of these components will be presented.

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46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGYPaul trapbeam thermalizationbeta decaysion guidesradioactive ion beamstest of the Standard Model

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Brodeur, M., Ahn, T., Bardayan, D. W., Burdette, D. P., Clark, J. A., Gallant, A. T., Kolata, J. J., Liu, B., O’Malley, P. D., Porter, W. S., Ringle, R., Rivero, F., Savard, G., Valverde, A. A., Zite, R.. 2023-05-16. Construction of St. Benedict. https://doi.org/10.1016/j.nimb.2023.05.024

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