Laser spectroscopy of neutron-rich calcium isotopes

by Ronald Fernando Garcia Ruiz (KU Leuven (BE))

Wednesday 24 Feb 2016, 14:30 → 15:30 Europe/Zurich

CERN

Having two doubly-magic isotopes, 40Ca and 48Ca, the calcium isotopes are considered as a prime benchmark for nuclear structure, both from a theoretical and an experimental perspective. A renewed interest has been given to the neutron-rich Ca isotopes, as their properties have revealed new aspects of many-body physics. Additionally, evidence of doubly-magic features has been suggested in two short-lived Ca isotopes, 52Ca [1] and 54Ca [2]. In this seminar we will discuss the recent experimental results obtained with the collinear laser spectroscopy technique at the COLLAPS beam line at ISOLDE, CERN. From these measurements, the nuclear ground-state electromagnetic moments, spins and changes in the root-mean squared charge radii were obtained up to 52Ca [3, 4].

[1] F. Wienholtz et al., Nature 498, 346 (2013).

[2] D. Steppenbeck et al., Nature 502, 207 (2013).

[3] R.F. Garcia Ruiz et al., Phys. Rev. C 91, 041304(R) (20015).

[4] R.F. Garcia Ruiz et al., Nature Physics [doi:10.1038/nphys3645] (2016).