Lifetime measurements in182,186Pt

Lifetime measurement of the first2+state inPt178

“…Thus, one might be inclined to favor the higher-lying data point over the lower one, albeit the quoted uncertainties in Ref. [23] are larger. Finally, from the entire data set of even-even Pt isotopes, one can see that the value determined by the present measurement shows a relatively smooth evolution with mass, indicating an increase in the collectivity with increasing mass, reaching the expected maximum value near the neutron midshell.…”

“…From a theoretical point of view, these properties have been investigated by quantum calculations in this region in terms of both microscopic calculations and phenomenological models [9][10][11][12][13][14][15][16][17][18]. There has been considerable effort to study nuclear structure properties in Pt isotopes by using both heavy-ion [19][20][21][22][23][24] and Coulomb excitation [25] experiments. Competing nuclear shapes are closely associated with the nuclear collective motion and especially quadrupole collectivity at low spin.…”

Triaxial projected shell model study of the rapid changes inB(E2)for180−190Pt isotopes

“…3 as an example. The known experimental levels are well described, and the observed levels of the γ-band [20,24,25,[47][48][49][50][51]. There are two sets of experimental data for 182 Pt -one from Ref.…”

“…There has been considerable effort to study nuclear structure properties in Pt-isotopes using both heavy-ion [19][20][21][22] and Coulomb excitation experiments [23]. Very recently, detailed lifetime measurements of the yrast bands have been performed [24,25] for 182,186 Pt isotopes and it has been shown that a steep increase in B(E2) transition probabilities can partially be explained by using the prescription of mixing of two bands corresponding to two different shapes [24]. Detailed theoretical investigation of the ground-state deformations of Pt-isotopes from A = 166 to 204 has been carried out using the D1S, D1N, and D1M parameterizations of the Gogny energy density functional approach [26].…”

“…There are two sets of experimental data for 182 Pt -one from Ref. [24] (shown in red colour) and the other from Ref. [25] ( shown in green colour).…”