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Konstantinopoulos, T.; Petkov, P.; Goasduff, A.; Arici, T.; Astier, A.; Atanasova, L.; Axiotis, M.; Bonatsos, D.; Detistov, P.; Dewald, A.; Eller, M. J.; Foteinou, V.; Gargano, A.; Georgiev, G.; Gladnishki, K.; Gottardo, A.; Harissopulos, S.; Hess, H.; Kaim, S.; Kocheva, D.; Kusoglu, A.; Lagoyannis, A.; Ljungvall, J.; Lutter, R.; Matea, I.; Melon, B.; Mertzimekis, T. J.; Nannini, A.; Petrache, C. M.; Petrovici, A.; Provatas, G.; Reiter, P.; Rocchini, M.; Roccia, S.; Seidlitz, M.; Siebeck, B.; Suzuki, D.; Warr, N.; Witte, H. de; Zerrouki, T. (2017): Lifetime measurements in ¹⁰⁰Ru. In: Physical Review C, Vol. 95, No. 1, 14309
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The nucleus Ru-100 appears to be a good candidate for the E(5) critical point symmetry which describes the U(5)-SO(6) shape phase transition. To investigate this point with respect to the electromagnetic transition strengths, lifetime measurements of its yrast states have been performed using the recoil distance Doppler shift technique as well as the Doppler shift attenuation method. As a result, the lifetimes of the yrast 2(+), 4(+), and 8(+) states were determined. The deduced transition strengths are compared to the E(5) predictions as well as to the results of excited Vampir and shell-model calculations.