Tidal Waves in $^{102}$Pd: A Phenomenological Analysis

TL;DR

This paper analyzes the rotational and electromagnetic properties of the yrast band in $^{102}$Pd using a phenomenological phonon model with anharmonic terms, confirming the multi-phonon picture and particle-vibration coupling effects.

Contribution

It introduces a phenomenological phonon model with anharmonic terms to accurately describe $^{102}$Pd's properties, supporting the multi-phonon interpretation.

Findings

Model reproduces moment of inertia and B(E2) values accurately.

Confirms the multi-phonon picture in $^{102}$Pd.

Shows phonon-phonon interaction depends on phonon frequency as expected.

Abstract

Rotational and electromagnetic properties of the yrast band in $^{102}$Pd are analyzed in terms of a phenomenological phonon model that includes anharmonic terms. Both the moment of inertia and $B(E2)$'s are well reproduced by the model, providing an independent confirmation of the multi-phonon picture recently proposed. The (empirical) dependence of the phonon-phonon interaction on the phonon frequency, in Ru, Pd, and Ru isotopes, follows the expectations from particle-vibration coupling.