The ground state rotational bands in150Sm and152Sm

1 August 1972

journal article
Published by IOP Publishing in Journal of Physics A: General Physics

Vol. 5 (8) , L69-L73
https://doi.org/10.1088/0305-4470/5/8/002

Abstract

The gamma rays from the ¹⁵⁰Nd ( alpha ,4n) ¹⁵⁰Sm and ¹⁵⁰Nd ( alpha ,2n) ¹⁵²Sm reactions have been studied both in singles and coincidence. The ground state rotational bands in ¹⁵⁰Sm and ¹⁵²Sm are populated up to the state with spin 10⁺. It is found that the nuclear moment of inertia of ¹⁵⁰Sm is substantially lower than that of ¹⁵²Sm for the low spin states, but that it increases with spin and the moments of inertia converge for the high spin states. This supports earlier evidence that the change from spherical to deformed nuclei between N=88 and N=90 is gradual.

Keywords

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