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arXiv · 2508.04119

Microscopic determination of the interacting boson-fermion model Hamiltonian from the nuclear energy density functional

M. Homma·K. Nomura
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Abstract

A microscopic formulation of the interacting boson-fermion model for odd-$A$ nuclei is made using the nuclear energy density functional framework. Strength parameters for the bosonic Hamiltonian and boson-fermion interactions are shown to be determined completely so that energy surfaces and deformed single-particle energies of the Bose-Fermi systems should match the corresponding self-consistent mean-field solutions for fermionic systems. In an illustrative application to axially symmetric odd-$A$ Eu, this procedure is shown to be valid in describing spherical-to-deformed shape phase transitions in odd-$A$ and even-even systems.

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M. Homma, K. Nomura. 2025-08-06. Microscopic determination of the interacting boson-fermion model Hamiltonian from the nuclear energy density functional. https://doi.org/10.1016/j.physletb.2025.139880

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