P. Van Isacker
Published 2010-12-09Version 1
A review is given of the relation between pairing, quasi-spin algebras and seniority. The former two concepts are closely connected, the relation being that the quasi-spin formalism allows an efficient solution of the pairing problem. Seniority is of much wider applicability than either pairing or quasi-spin and applications can even be extended to encompass the notion of partial symmetry. A recent application of partial conservation of seniority and its importance for nuclear isomers is discussed.
Comments: 8 pages, 2 figures. Presented at the 17th Nuclear Physics Conference "Marie and Pierre Curie" on " Symmetry and Symmetry Breaking in Nuclear Physics", Kazimierz Dolny, 22-26 september 2010, Poland. Accepted for publication in International Journal of Modern Physics E
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