Electromagnetic Transition Strengths in Heavy Nuclei

TL;DR

This paper provides detailed calculations of electromagnetic transition strengths in heavy nuclei to support a new structural model, aiding experimental identification of specific nuclear bands and testing model predictions.

Contribution

It offers the first detailed B(E2) and B(M1) transition strength calculations for heavy nuclei, supporting a novel nuclear structure model and guiding experimental verification.

Findings

Calculated electromagnetic transition strengths support the model.

Identified key transitions for experimental detection of specific bands.

Pinpointed transitions indicating a potential elusive 1+ band.

Abstract

We calculate reduced B(E2) and B(M1) electromagnetic transition strengths within and between K-bands in support of a recently proposed model for the structure of heavy nuclei. Previously, only spectra and a rough indication of the largest B(E2) strengths were reported. The present more detailed calculations should aid the experimental identification of the predicted $0^+$, $1^+$ and $2^+$ bands and, in particular, act to confirm or refute the suggestion that the model $0^+$ and $2^+$ bands correspond to the well known and widespread beta and gamma bands. Furthermore they pinpoint transitions which can indicate the presence of a so far elusive $1^+$ band by feeding relatively strongly into or out of it. Some of these transitions may already have been measured in $^{230}$Th, $^{232}$Th and $^{238}$U.