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Soft triaxial roto-vibrational motion in the vicinity of $γ=π/6$

Lorenzo Fortunato
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Abstract

A solution of the Bohr collective hamiltonian for the $β-$soft, $γ-$soft triaxial rotor with $γ\sim π/6$ is presented making use of a harmonic potential in $γ$ and Coulomb-like and Kratzer-like potentials in $β$. It is shown that, while the $γ-$angular part in the present case gives rise to a straightforward extension of the rigid triaxial rotor energy in which an additive harmonic term appears, the inclusion of the $β$ part results instead in a non-trivial expression for the spectrum. The negative anharmonicities of the energy levels with respect to a simple rigid model are in qualitative agreement with general trends in the experimental data.

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Lorenzo Fortunato. 2004-06-15. Soft triaxial roto-vibrational motion in the vicinity of $γ=π/6$. https://doi.org/10.1103/physrevc.70.011302

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