$\beta$-decay rates of $^{(115,117)}$Rh into $^{(115,117)}$Pd isotopes in the microscopic IBFM-2

TL;DR

This paper investigates the nuclear structure and beta-decay rates of specific Rh and Pd isotopes using the microscopic IBFM-2 model, providing theoretical predictions and comparisons with experimental data.

Contribution

It applies the neutron-proton IBFM-2 to analyze odd-A Rh and Pd isotopes and predicts beta-decay ft values, offering new insights into their nuclear structure and decay properties.

Findings

Predicted energy levels align with experimental data.

Calculated beta-decay ft values agree with measurements.

Discussed quantum number assignments for Pd ground states.

Abstract

The structure of odd-$A$ $^{(115,117)}$Rh and $^{(115,117)}$Pd isotopes is studied by means of the neutron-proton Interacting Boson-Fermion Model (IBFM-2). $J^P = \frac{1}{2}^+$ quantum number assignment for the $^{(115,117)}$Pd ground-states is critically discussed and the predicted energy levels are compared to the existing experimental data. The resulting nuclear wave functions are used to compute the $\beta$-decay $ft$ values of the transitions from $^{(115,117)}$Rh to $^{(115,117)}$Pd in the microscopic IBFM-2 and the results compared with the data.