The role of the shape driving neutron orbital in 108Cd

Shell-model-based deformation analysis of light cadmium isotopes

“…Comparing the orbital occupation numbers of these two states, one notices that the major differences result from the filling of the 2d 5/2 and the 1h 11/2 orbitals. In the 8 + 1 state the 2d 5/2 and 1h 11/2 orbitals are filled with ≈ 3.4 and ≈ 2 neutrons respectively, whereas in the 8 character [112]. In the same study it was found, that the 1h 11/2 orbital is playing a dominant role in the low and high spin structure of 108 Cd with a shape driving effect.…”

Interplay between tilted and principal axis rotation

“…al. [39]. These calculations indicate that the quadrupole deformation β 2 remains constant at the value of 0.17 uptohω=0.50 MeV.…”

“…al [39,40] where the positive parity yrast band was extended upto I π =24 + . This band exhibits a sharp backbend at I π =10 + due to alignment of two h 11/2 neutrons followed by a slow alignment of g 7/2 neutrons.…”

RDM lifetime measurements in107Cd

“…These are plotted for the yrast bands in 106,8 Cd [29] and the negative parity bands in 107,9 Cd [4,20] in figure 3. Assuming axially symmetric (γ = 0 • ) quadrupole deformed shapes, the B(E2 : I → I − 2) value for a stretched E2 transition between two successive states in a rotational band, characterized by a constant K value and a transition quadrupole moment, Q 0 , is given by [18],…”

“…where N is the number of valence bosons (N = 5, 6 for 106, 8 Cd respectively) and I is the spin of the upper yrast level which decays via a stretched electric quadrupole transition to an yrast state of spin I − 2.…”