Phys.Rev. C 106, 064323 (2022)

A.Esmaylzadeh, A.Blazhev, K.Nomura, J.Jolie, M.Beckers, C.Fransen, R.-B.Gerst, A.Harter, V.Karayonchev, L.Knafla, M.Ley, F.von Spee

Investigation of γ softness: Lifetime measurements in ^{104, 106}Ru

NUCLEAR REACTIONS ¹⁰⁴Ru(¹⁸O, ¹⁸O), (¹⁸O, ¹⁶O), E=57 MeV; measured reaction products, Eγ, Iγ, (particle)γ-coin. ^104,106Ru; deduced levels, J, π, T_1/2 of low-lying excited states, B(E2), B(M1), shape invariants. Recoil-distance Doppler shift technique. Comparison to mapped-IBM calculation based on a microscopic energy density functional, to the values obtained with Wilets-Jean γ-soft model and to previous experimental data. Results indicate γ-softness and point on traixilaity in ^104,106Ru. Cologne plunger device in conjunction with 11 HPGe detectors arranged in backward and forward rings combined with 6 PIN diodes for detecting the backscattered beam-like light recoiling fragments 10 MV FN-Tandem accelerator.

doi: 10.1103/PhysRevC.106.064323