https://doi.org/10.1140/epja/i2006-10129-2
Nuclear Structure and Reactions
Evolution of 2+ γ wave functions and gamma-stiffness in well-deformed rare-earth nuclei
1
Physik Department E12, Technische Universität München, D-85748, Garching, Germany
2
A.W. Wright Nuclear Structure Laboratory, Yale University, 06520, New Haven, CT, USA
3
National Institute of Physics and Nuclear Engineering, Bucharest-Magurele, Romania
Received:
9
May
2006
Accepted:
2
October
2006
Published online:
10
November
2006
The evolution of the structure of the gamma-vibrational band head 2+ γ in well-deformed rare-earth nuclei is studied within the framework of RPA calculations using a quasiboson approximation based on the Nilsson model. The obtained evolution of the quasiparticle structure of the gamma-vibrational band head is shown to correlate well with the evolution of the same nuclei within the IBA symmetry triangle when described in the extended consistent-Q formalism. An empirical relation is presented that links the IBA parameter χ with the quasiparticle structure of the gamma-vibrational band head.
PACS: 21.10.Re Collective levels – / 27.60.+j 90 ⩽ A ⩽ 149 – / 21.60.Jz Hartree-Fock and random-phase approximations – / 21.60.Fw Models based on group theory –
© Società Italiana di Fisica and Springer-Verlag, 2006
