Stopped RIBs for St. Benedict at Notre Dame

ORAL  · Invited

Abstract

The Superallowed Transition Beta-Neutrino Decay Ion Coincidence Trap (St. Benedict), currently under construction at the University of Notre Dame Nuclear Science Laboratory, aims at measuring the beta-neutrino angular correlation parameter in superallowed mixed beta decay transitions between mirror nuclei. Such measurements will allow us to improve the precision on the extraction of the Vud matrix element in these transitions. St. Benedict will take a radioactive ion beam produced by TwinSol, thermalize it in a large volume gas cell, then transport it into two separates, differentially pumped, volumes using a radiofrequency (RF) carpet and a radio-frequency quadrupole (RFQ) ion guide before injecting it in an RFQ trap to create cool ion bunches for injection into the measurement Paul trap. Results of the off-line commissioning of the gas catcher and its extraction system and the online installation will be presented.

*This work is supported by the US National Science Foundation under grants PHY-1725711 and PHY-2011890 as well as the University of Notre Dame.

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Presenters

  • Maxime Brodeur

    • University of Notre Dame

Authors

  • Maxime Brodeur

    • University of Notre Dame

  • Tan Ahn

    • University of Notre Dame

  • Dan W Bardayan

    • University of Notre Dame

  • Daniel Burdette

    • Argonne National Laboratory

  • Jason A Clark

    • Argonne National Laboratory

  • Aaron T Gallant

    • Lawrence Livermore National Laboratory
    • Lawrence Livermore Natl Lab

  • Driss Guillet

    • University of Notre Dame/ENS Paris-Saclay
    • ENS Paris-Saclay

  • Alicen M Houff

    • University of Notre Dame
    • Univerisity of Notre Dame

  • James J Kolata

    • University of Notre Dame

  • Biying Liu

    • University of Notre Dame

  • Patrick O'Malley

    • University of Notre Dame

  • William S Porter

    • University of Notre Dame

  • Fabio Rivero

    • University of Notre Dame

  • Guy Savard

    • Argonne National Laboratory

  • Adrian A Valverde

    • Argonne National Laboratory

  • Regan Zite

    • University of Notre Dame