%0 Journal Article
%T Monopole-Driven Shell Evolution below the Doubly Magic Nucleus Sn-132 Explored with the Long-Lived Isomer in Pd-126
%A Watanabe, H. et al
%A Montaner-Piza, A.
%J Physical Review Letters
%D 2014
%V 113
%N 4
%I Amer Physical Soc
%@ 0031-9007
%G English
%F Watanabe+Montaner-Piza2014
%O WOS:000341261100004
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=1910), last updated on Fri, 26 Sep 2014 11:18:46 +0000
%X A new isomer with a half-life of 23.0(8) ms has been identified at 2406 keV in Pd-126 and is proposed to have a spin and parity of 10(+) with a maximally aligned configuration comprising two neutron holes in the 1h(11/2) orbit. In addition to an internal-decay branch through a hindered electric octupole transition, beta decay from the long-lived isomer was observed to populate excited states at high spins in Ag-126. The smaller energy difference between the 10(+) and 7(-) isomers in Pd-126 than in the heavier N = 80 isotones can be interpreted as being ascribed to the monopole shift of the 1h(11/2) neutron orbit. The effects of the monopole interaction on the evolution of single-neutron energies below Sn-132 are discussed in terms of the central and tensor forces.
%R 10.1103/PhysRevLett.113.042502
%U https://doi.org/10.1103/PhysRevLett.113.042502
%P 042502-6pp