Speaker
Description
The neutron-rich region of the nuclear chart with Z between 70 to 78 has been long known as a region which shows a wide variety of nuclear structure phenomena\iffalse properties \fi. In particular, the shape evolution in the neutron-rich Os isotopic chain from prolate to oblate to spherical has been pointed out by theoretical calculations and explored in an extensive experimental effort. Results suggest $^{196}$Os as an almost perfect $\gamma$-unstable/triaxial rotor character.
Information on the B(E2) values of the low lying states of $^{196}$Os will provide a deeper understanding of its nuclear structure and of the shape evolution when going towards N=126 magic number.\
We aim to measure the lifetimes of the $2^+$ and $4^+$ states of $^{196}$Os, exploiting for the first time the plunger setup in its reverse configuration.
The states of interest will be populated via a multinucleon-transfer reaction with a beam of $^{136}$Xe impinging on a $^{198}$Pt target. The beam-like reaction fragments will be identified by the PRISMA spectrometer while the AGATA array will detect the emitted gamma rays.
