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    Electroweak Nuclear Properties from Single Molecular Ions in a Penning Trap

    J. Karthein1,*,†, S. M. Udrescu1,*,‡, S. B. Moroch1, I. Belosevic2, K. Blaum3, A. Borschevsky4, Y. Chamorro4, D. DeMille5,6,§, J. Dilling7,8 et al.

    R. F. Garcia Ruiz1,∥, N. R. Hutzler9, L. F. Pašteka4,10, and R. Ringle11

    • *These authors contributed equally to this work.
    • †Corresponding author: karthein@mit.edu
    • ‡Corresponding author: sudrescu@mit.edu
    • §Corresponding author: ddemille@uchicago.edu
    • ∥Corresponding author: rgarciar@mit.edu

    Phys. Rev. Lett. 133, 033003 – Published 19 July, 2024

    DOI: https://doi.org/10.1103/PhysRevLett.133.033003

    Abstract

    We present a novel technique to probe electroweak nuclear properties by measuring parity violation (PV) in single molecular ions in a Penning trap. The trap’s strong magnetic field Zeeman shifts opposite-parity rotational and hyperfine molecular states into near degeneracy. The weak interaction-induced mixing between these degenerate states can be larger than in atoms by more than 12 orders of magnitude, thereby vastly amplifying PV effects. The single molecule sensitivity would be suitable for applications to nuclei across the nuclear chart, including rare and unstable nuclei.

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