Structure of superdeformed bands in the A ≈ 150 mass region

Highly deformed intruder bands in the A≈130 mass region

A review of the empirical data on intrinsic states of odd-$A$ nuclei in the mass range $151\ensuremath{\le}A\ensuremath{\le}193$ and $A\ensuremath{\ge}221$ is presented. Global summaries of the data are presented in tables for each isotopic and isotonic chain, wherein the excitation energy, the $log\mathrm{ft}$ values, the moment-of-inertia parameter, and the decoupling parameter (for $K=\frac{1}{2}$ bands) are listed for single-particle, vibrational admixed, and pure vibrational states. Similar data are separately presented for three-quasiparticle excitations in the rare-earth region. Taking guidance from the systematics on nuclear deformation, the single-particle deformed potential for axially symmetric and reflection-symmetric shapes (the Nilsson model) modified by the hexadecapole deformation is used to interpret the data. Other variations of the Nilsson model, which include axially asymmetric shapes ($\ensuremath{\gamma}$ deformation) and especially reflection-asymmetric shapes (octupole deformation), have also been used to interpret the data in certain limited regions. Systematics for the intrinsic excitations are presented and discussed in terms of these models. The newly emerging regions of the octupole-quadrupole deformation and superdeformation are also discussed.

Intrinsic states of deformed odd-A nuclei in the mass regions (151 221)

EUROBALL: Large gamma ray spectrometers through european collaborations

https://pure.rug.nl/ws/files/60394810/Single_step_links_of_the_superdeformed_band_in_194Pb.pdf

Single step links of the superdeformed band in Pb-194 : A measure of the absolute excitation energy, spin and parity of the superdeformed states

/pdf/superdeformed-band-in-135nd-wqtafryugu.pdf

Superdeformed band in 135Nd.

A discrete superdeformed band was found in /sup 148/Gd, and was produced both in Ca- and Si-induced compound-nucleus reactions. It is the third band found in the mass-150 region and its properties provide the clearest indication that /sup 152/Dy is a ''magic'' superdeformed nucleus

/pdf/superdeformed-band-in-148gd-a-test-of-shell-effects-in-the-5ca7gw8mwk.pdf

C. Duyar

Papers

Superdeformed band in 135Nd.

Superdeformed band in 148Gd: A test of shell effects in the mass-150 region.