arXiv 1502.075902015-02nucl-th

A microscopic derivation of nuclear collective rotation-vibration model, axially symmetric case

Parviz Gulshani

备注：: The Rev 4 version of the article revises the Rev 3 version to: (i) reduce the size of the article by deleting some of the equations in Sections 2 and 3, (ii) to clarify the physical interpretation of the results in Eqs. (25) and (26), and the comparison of the model to the other models in Section 4, and (iii) to the add the results of the model application to another heavy nucleus
DOI：: 10.1139/cjp-2015-0371

英文摘要：

We derive a microscopic version of the successful phenomenological hydrodynamic model of Bohr-Davydov-Faessler-Greiner for collective rotation-vibration motion of an axially symmetric deformed nucleus. The derivation is not limited to small oscillation amplitude. The nuclear Schrodinger equation is canonically transformed the to collective co-ordinates, which is then linearized using a constrained variational method. The associated constraints are imposed on the wavefunction rather than on the particle co-ordinates. The approach yields three self-consistent, time-reversal invariant, cranking-type Schrodinger equations for the rotation-vibration and intrinsic motions, and a self-consistency equation. For harmonic oscillator mean-field potentials, these equations are solved in closed forms and applied to the ground-state rotational bands in some axially-symmetric nuclei. The results are compared with the measured data.

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