Nuclear structure and band mixing in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi>Pt</mml:mi><mml:mprescripts/><mml:none/><mml:mn>194</mml:mn></mml:mmultiscripts></mml:math>

Abstract

We introduce a two-particle, two-hole mixed configuration scheme to fit $E2$ strengths for the $0\ensuremath{\leftrightarrow}2, 2\ensuremath{\leftrightarrow}4$, and $4\ensuremath{\leftrightarrow}6$ transitions in $^{194}\mathrm{Pt}$. The interaction includes two sets of pairing operators, {${S}^{\ifmmode\pm\else\textpm\fi{}}(t),{S}^{0}(t)$} $(t=s,d)$. Solutions within this framework are used to analyze energy spectra, $E2$ transitions, and band-mixing features of the model. The results confirm that mixing is small and similar for $J=2$, 4, and 6, with the calculated energies and transition matrix elements in excellent agreement with experimental data.

Topics & Concepts