Testing the weak interaction using St. Benedict at the University of Notre Dame

The Standard Model of physics provides a description of matter in the universe, but fails to reproduce many unexplained features, such as neutrino oscillations and the matter-antimatter asymmetry. One avenue to constrain physics beyond the Standard Model is via the precise determination of the Vud m...

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Bibliographic Details
Published inNuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms Vol. 463; pp. 488 - 490
Main Authors O’Malley, P.D., Brodeur, M., Burdette, D.P., Klimes, J.W., Valverde, A.A., Clark, J.A., Savard, G., Ringle, R., Varentsov, V.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 15.01.2020
Subjects
Beam manipulation
Beam stopping
Paul trap
Weak interaction
Beam manipulation
Weak interaction
Beam stopping
Paul trap
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Summary:The Standard Model of physics provides a description of matter in the universe, but fails to reproduce many unexplained features, such as neutrino oscillations and the matter-antimatter asymmetry. One avenue to constrain physics beyond the Standard Model is via the precise determination of the Vud matrix element of the Cabibbo-Kobayashi-Maskawa matrix from the ft-value of superallowed mixed beta-decay transitions. Such tests however require the determination of the Fermi to Gamow-Teller mixing ratio, which is currently unknown for all but five mixed mirror transition nuclei. At the University of Notre Dame a project is underway to develop a Paul trap devoted to the measurement of this elusive quantity. The design and goals will be presented.
ISSN:0168-583X
1872-9584
DOI:10.1016/j.nimb.2019.04.017