Lifetime measurements of the 2₁+, 4₁+ and 6₁+ states in ¹¹⁴Pd [Lifetime measurements of the $2^{+}_{1}$, $4^{+}_{1}$ and $6^{+}_{1}$ states in $^{114}Pd$] [Lifetime measurements of the 2+1 , 4+1 and 6+1 states in 114Pd]

Among the most important physical observables in nuclear structure are the lifetimes of nuclear excited states. Nuclei of 114Pd, predicted by spectroscopic signatures to be candidates for γ-rigid triaxiality, were populated in the spontaneous fission of 252Cf and the lifetimes of the 2+ 1 , 4+ 1 and 6+ 1 states were measured via the fast-timing technique. The obtained lifetimes of τ2+ = 103(10) ps, τ4+ = 21(11) ps, and τ6+ ≤ 10 ps, and the corresponding deduced B(E2; I → I-2) transition probabilities, indicate these to be collective states and also suggest the triaxial shape of 114Pd to be more γ-rigid than its even-even neighbours in the Z = 46 isotopic chain.