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New sub-mus isomers in 125,127,129Sn and isomer systematics of 124-130Sn
- Source :
- Physical Review C, Physical Review C, 2008, 77, pp.064313. ⟨10.1103/PhysRevC.77.064313⟩, Physical Review C, American Physical Society, 2008, 77, pp.064313. ⟨10.1103/PhysRevC.77.064313⟩
- Publication Year :
- 2008
- Publisher :
- HAL CCSD, 2008.
-
Abstract
- Newsub-μs isomers have been observed in the neutron-rich Sn isotopes. 125,127,129Sn nuclei have been produced in a relativistic fission reaction of 238U on a 9Be target at 750 A·MeV and by the fragmentation of 136Xe at 600 A·MeV populating high-spin yrast states. In addition to the already known μs isomers, three new ones with sub-μs half-lives have been observed. These yrast isomers are the high-spin members of the ν(d−1 3/2h−2 11/2) and νh−n 11/2, seniority v = 3 multiplets leading to isomeric (23/2+) and (27/2−) states, respectively. Added to the already known 19/2+μs isomers in this region the current work completes the systematic information of neutron-hole excitations toward the filling of the last h11/2 orbital at N = 82. The results are discussed in the framework of state-of-the-art shell-model calculations using realistic interactions.
Details
- Language :
- English
- ISSN :
- 24699985 and 24699993
- Database :
- OpenAIRE
- Journal :
- Physical Review C, Physical Review C, 2008, 77, pp.064313. ⟨10.1103/PhysRevC.77.064313⟩, Physical Review C, American Physical Society, 2008, 77, pp.064313. ⟨10.1103/PhysRevC.77.064313⟩
- Accession number :
- edsair.dedup.wf.001..eb3d2c8034f269d32be96012b33e8182
- Full Text :
- https://doi.org/10.1103/PhysRevC.77.064313⟩