Partial conservation of seniority and nuclear isomerism

Abstract

We point out the possibility of the {\em partial} conservation of the seniority quantum number when most eigenstates are mixed in seniority but some remain pure. This situation occurs in nuclei for the $g_{9/2}$ and $h_{9/2}$ shells where it is at the origin of the existence of seniority isomers in the ruthenium and palladium isotopes. It also occurs for $f$ bosons.

Accepted for publication in Physical Review Letters

References in corpus (1)

• Relations Between Coefficients of Fractional Parentage

Cited by in corpus (2)

• Partial dynamical symmetry in quantum Hamiltonians with higher-order terms
• Partial Dynamical Symmetries in the g9/2 Shell-Progress and Puzzles