Partial conservation of seniority and nuclear isomerism

P. van Isacker (1) , S. Heinze (2)

1 GANIL - Grand Accélérateur National d'Ions Lourds
2 Institute of Nuclear Physics

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.

Domaines: Physique Nucléaire Théorique [nucl-th]

P. van Isacker, S. Heinze. Partial conservation of seniority and nuclear isomerism. Physical Review Letters, 2008, 100, pp.052501. ⟨10.1103/PhysRevLett.100.052501⟩. ⟨in2p3-00202956⟩