Conveners
Fundamental Symmetries & Precision Measurements
- Jeremy Lantis (Argonne National Laboratory)
Atoms and molecules containing nuclei with extreme proton-to-neutron ratios can be artificially created to enhance sensitivity to particular nuclear phenomena. Precision laser spectroscopy measurements of atomic species provide access to the ground-state electromagnetic properties of nuclei, which play a critical role in our understanding of nuclear structure.
On the other hand, the...
Neutrinoless ββ decay is a special nuclear process where a nucleus decays into its isobar with two more protons by only emitting two electrons. This beyond-standard-model decay can establish the nature of neutrinos and shed light into the matter-antimatter asymmetry of the universe [1]. The process, if exists, is sensitive to the structure of the initial, intermediate and final nuclei of the...
The nuclear charge radius of 32Si was first determined [1] from the isotope-shift of hyperfine structure measured at the BECOLA facility at the Facility for Rare Isotope Beams, Michigan State University. A SiO+ molecular beam was produced in the batch mode ion source (BMIS), transported at 30 keV and broken up at BECOLA to produce Si+ for laser spectroscopy. The extracted charge radius...
Investigating the properties of atomic nuclei through measuring their influence upon bound electrons is a powerful and well-established approach in modern nuclear physics [Yan23]. By measuring the hyperfine structure and isotope shift in the atomic structure of radioactive nuclei, nuclear spins, magnetic dipole and electric quadrupole moments and changes in mean-square charge radii can be...
