2025/09/25 by Nickel, C. M., Werner, V., John, P. R. +24
#FOS: Physical sciences #Nuclear Experiment (nucl-ex)
paper · doi:10.48550/arxiv.2509.20915
The lifetimes of the 2+1 and 4+1 states of 200Pt were measured applying the recoil-distance Doppler-shift method. Excited states were populated in the 198Pt(18O, 16O)200Pt two-neutron transfer reaction at the 9 MV tandem accelerator at the IFIN-HH in Măgurele, Romania. The resulting B(E2) values of the 2+1 → 0+1 and 4+1 → 2+1 transitions as well as the B4/2 ratio of 2.08(32) indicate the nuclear structure evolving towards sphericity when approaching the neutron shell closure at N = 126. The B(E2; 2+1 → 0+1) values of Pt and Hg are compared to values of Te, Xe and Ba as both regions of the nuclear chart show similar structural effects.