Search for Fingerprints of Tetrahedral Symmetry in $^{156}Gd$

TL;DR

This paper investigates the potential tetrahedral symmetry in $^{156}Gd$ by experimentally measuring intra-band E2 transitions and branching ratios, aiming to confirm theoretical predictions of unique nuclear shape phenomena.

Contribution

The study provides experimental data on intra-band E2 transitions and branching ratios in $^{156}Gd$, testing the hypothesis of tetrahedral symmetry in this nucleus.

Findings

Determined intra-band E2 transitions in $^{156}Gd$

Measured B(E2)/B(E1) branching ratios

Provided evidence relevant to tetrahedral symmetry hypothesis

Abstract

Theoretical predictions suggest the presence of tetrahedral symmetry as an explanation for the vanishing intra-band E2-transitions at the bottom of the odd-spin negative parity band in $^{156}Gd$. The present study reports on experiment performed to address this phenomenon. It allowed to determine the intra-band E2 transitions and branching ratios B(E2)/B(E1) of two of the negative-parity bands in $^{156}Gd$.