Rotational properties in even-even superheavy $^{254-258}$Rf nuclei based on total-Routhian-surface calculations

TL;DR

This paper investigates the rotational behaviors of superheavy Rf isotopes using total-Routhian-surface calculations, successfully reproducing experimental moments of inertia and predicting high-spin states for neighboring isotopes.

Contribution

It applies a three-dimensional total-Routhian-surface approach to model high-spin structures in superheavy nuclei, providing new insights into neutron and proton alignment effects.

Findings

Reproduces moments of inertia for $^{256}$Rf accurately

Identifies neutron $j_{15/2}$ and proton $i_{13/2}$ alignment competition

Predicts high-spin states for $^{254,258}$Rf

Abstract

High-spin yrast structures of even-even superheavy nuclei $^{254-258}$Rf are investigated by means of total-Routhian-surface approach in three-dimensional ($\beta_2, \gamma, \beta_4$) space. The behavior in the moments of inertia of $^{256}$Rf is well reproduced by our calculations, which is attributed to the $j_{15/2}$ neutron rotation-alignment. The competition between rotationally aligned $i_{13/2}$ proton and $j_{15/2}$ neutron is discussed. High-spin predictions are also made for its neighboring isotopes $^{254,258}$Rf.