Lifetime Measurements in $^{182,186}$Pt}

TL;DR

This paper reports lifetime measurements in $^{182,186}$Pt nuclei using Doppler-shift techniques, revealing a sharp increase in B(E2) values at low spins, suggesting band mixing due to deformation differences.

Contribution

First lifetime measurements in these platinum isotopes using the Doppler-shift Recoil Distance method, providing insights into nuclear shape coexistence.

Findings

Sharp increase in B(E2) values at low spins

Evidence of mixing between bands of different deformations

Implications for nuclear shape coexistence in platinum isotopes

Abstract

Lifetimes in the yrast bands of the nuclei $^{182,186}$Pt have been measured using the Doppler-shift Recoil Distance technique. The results in both cases {\em viz.} a sharp increase in B(E2) values at very low spins, may be interpreted as resulting from a mixing between two bands of different quadrupole deformations.