Speaker
Description
I intend to present the preliminary results from the IS708 experiment, which plans to use both ISS and Miniball to study octupole collectivity in $^{146}$Ce using the complementary techniques of inelastic scattering and Coulomb excitation, respectively. The ISS experiment will use the Liverpool silicon array to measure the excited 2+ and 3- states populated in a (d,d’) reaction. The solenoidal technique will allow for the states to be measured with good separation in the lab, and will overcome sensitivity constraints experienced with γ-ray detectors so far when measuring B(E3) values in the lanthanide region. The measured cross sections will then be used as an input to a coupled channels analysis to determine the $B(E2;0_1 → 2_1+)$ and $B(E3;0_1 → 3_1-)$ transition strengths. A nuclear model independent measurement of the $B(E2;0_1 → 2_1+)$ transition strength at Miniball, will not only serve as a benchmark test of the new method, but will also give access to other E2 and E3 transitions in the nucleus. The complementary measurements will allow for a more comprehensive understanding of octupole collectivity in $^{146}$Ce and the broader lanthanide region.
