Speaker
Benjamin Kay
(Argonne National Laboratory)
Description
The single-neutron strengths and energies of the $1f_{7/2}$, $2p_{3/2}$, $2p_{1/2}$, $0h_{9/2}$, $1f_{5/2}$, and $0i_{13/2}$ valence neutron orbitals outside of doubly magic 132Sn have been determined via the $^{132}$Sn($d$,$p$)$^{133}$Sn reaction at 7.65 MeV per nucleon. The measurement, carried out at CERN’s HIE-ISOLDE facility using the ISOLDE Solenoidal Spectrometer, expands upon the pioneering measurement of Jones et al. [Nature 465, 454 (2010)]. The results suggest that the single-neutron strength for each orbital is carried in a single excitation, affirming the notion that $^{132}$Sn, the heaviest short-lived doubly magic nucleus, exhibits one of the strongest shell closures of all nuclei.
Primary author
Benjamin Kay
(Argonne National Laboratory)
