Spin-parity assignments and evidence for mixed-symmetry states in 100Ru.

Abstract

Spin and parity of some low-lying levels in $^{100}\mathrm{Ru}$ have been assigned by measuring K-internal conversion coefficients of the deexciting transitions. The new information, combined with the available experimental data, has been analyzed in the framework of the interacting boson model (IBM-2) to clarify the structure of the ${2}_{3}^{+}$, ${2}_{4}^{+}$, and ${3}_{1}^{+}$ levels in terms of their mixed-symmetry character. \textcopyright{} 1996 The American Physical Society.