Seminar Details

Exploring the nuclear landscape with laser-spectroscopy at ISOLDE

Magdalena Kowalska, CERN
Thursday, March 27, 3:00 PM - Special Seminar
NSCL Seminar Room

Ground-state properties of nuclei - spins, magnetic dipole and electric quadrupole moments, and charge radii - provide crucial information on nuclear single-particle and collective behaviour, and are particularly valuable in the context of shell closures and halo effects. They have been studied successfully for many exotic nuclei with the COLLAPS setup located at ISOLDE/CERN, which uses as source of information optical excitation or pumping of atoms/ions with laser light together with the hyperfine interaction of the nucleus with external or internal fields. Recent studies have concentrated on light nuclei, which host a realm of interesting phenomena: halos, clusters, or molecular structures, as well as disappearing or migrating magic numbers. The COLLAPS highlights include the quadrupole moment of halo 11Li; charge radius of two-proton halo candidate 17Ne; spins and magnetic moments of neutron-deficient 21Mg around Z=N line and those of neutron-rich 31,33Mg inside the 'island of inversion'. I will present the technique and setup, the physics motivation for the above measurements, as well as the experimental results and their interpretation.