New sub-s isomers in and isomer systematics of
RL Lozeva, GS Simpson, H Grawe, G Neyens… - Physical Review C …, 2008 - APS
RL Lozeva, GS Simpson, H Grawe, G Neyens, LA Atanasova, DL Balabanski, D Bazzacco…
Physical Review C—Nuclear Physics, 2008•APSNew sub-μ s isomers have been observed in the neutron-rich Sn isotopes. 125, 127, 129 Sn
nuclei have been produced in a relativistic fission reaction of U 238 on a Be 9 target at 750
A· MeV and by the fragmentation of Xe 136 at 600 A· MeV populating high-spin yrast states.
In addition to the already known μ s isomers, three new ones with sub-μ s half-lives have
been observed. These yrast isomers are the high-spin members of the ν (d 3/2-1 h 11/2-2)
and ν h 11/2-n, seniority v= 3 multiplets leading to isomeric (23/2+) and (27/2-) states …
nuclei have been produced in a relativistic fission reaction of U 238 on a Be 9 target at 750
A· MeV and by the fragmentation of Xe 136 at 600 A· MeV populating high-spin yrast states.
In addition to the already known μ s isomers, three new ones with sub-μ s half-lives have
been observed. These yrast isomers are the high-spin members of the ν (d 3/2-1 h 11/2-2)
and ν h 11/2-n, seniority v= 3 multiplets leading to isomeric (23/2+) and (27/2-) states …
New sub-s isomers have been observed in the neutron-rich Sn isotopes. nuclei have been produced in a relativistic fission reaction of on a target at 750 and by the fragmentation of at 600 populating high-spin yrast states. In addition to the already known s isomers, three new ones with sub-s half-lives have been observed. These yrast isomers are the high-spin members of the and , seniority multiplets leading to isomeric () and () states, respectively. Added to the already known s isomers in this region the current work completes the systematic information of neutron-hole excitations toward the filling of the last orbital at . The results are discussed in the framework of state-of-the-art shell-model calculations using realistic interactions.
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