New analytic solutions of the collective Bohr hamiltonian for a beta-soft, gamma-soft axial rotor

Details New analytic solutions of the collective Bohr hamiltonian for a beta-soft, gamma-soft axial rotor New analytic solutions of the collective Bohr hamiltonian for a beta-soft, gamma-soft axial rotor

2003-12-18

arxiv.org/abs/nucl-th/0312080v1

J.Phys.G30:627-636,2004

Physics

Nuclear Physics

Nuclear Theory

(Dipartimento di Fisica ``G.Galilei'' and INFN, via Marzolo 8, I-35131 Padova, Italy) 10 pages, 3 figures

Scientific paper

10.1088/0954-3899/30/5/006

New analytic solutions of the quadrupole collective Bohr hamiltonian are proposed, exploiting an approximate separation of the beta and gamma variables to describe gamma-soft prolate axial rotors. The model potential is a sum of two terms: a beta-dependent term taken either with a Coulomb-like or a Kratzer-like form, and a gamma-dependent term taken as an harmonic oscillator. In particular it is possible to give a one parameter paradigm for a beta-soft, gamma-soft axial rotor that can be applied, with a considerable agreement, to the spectrum of 234U.

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