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Observation of isomeric decays in the $r$-Process waiting-point nucleus $^{130}Cd_{82}$
- Source :
- Physical Review Letters, Physical Review Letters, American Physical Society, 2007, 99, pp.132501. ⟨10.1103/PhysRevLett.99.132501⟩
- Publication Year :
- 2007
- Publisher :
- HAL CCSD, 2007.
-
Abstract
- The gamma decay of excited states in the waiting-point nucleus (130)Cd(82) has been observed for the first time. An 8(+) two-quasiparticle isomer has been populated both in the fragmentation of a (136)Xe beam as well as in projectile fission of 238U, making (130)Cd the most neutron-rich N = 82 isotone for which information about excited states is available. The results, interpreted using state-of-the-art nuclear shell-model calculations, show no evidence of an N = 82 shell quenching at Z = 48. They allow us to follow nuclear isomerism throughout a full major neutron shell from (98)Cd(50) to (130)Cd(82) and reveal, in comparison with (76)Ni(48) one major proton shell below, an apparently abnormal scaling of nuclear two-body interactions.
Details
- Language :
- English
- ISSN :
- 00319007 and 10797114
- Database :
- OpenAIRE
- Journal :
- Physical Review Letters, Physical Review Letters, American Physical Society, 2007, 99, pp.132501. ⟨10.1103/PhysRevLett.99.132501⟩
- Accession number :
- edsair.pmid.dedup....a94cb5021364ed22360410db6008e4cc