Yrast excitations around doubly magic {sup 132}Sn from fission product {gamma}-ray studies.
Journal Article
·
· Phys. Rev. Lett.
Prompt {gamma}-ray cascades in neutron-rich nuclei around doubly magic {sup 132}Sn have been studied at Eurogam II using a {sup 248}Cm fission source. Yrast states to above 5.5 MeV in the two- and three-proton N = 82 isotones {sup 134}Te and {sup 135}I are reported. They are interpreted in terms of valence proton and particle-hole core excitations with the help of shell model calculations employing empirical nucleon-nucleon interactions from both {sup 132}Sn and {sup 208}Pb regions. A serious inconsistency in the accepted masses of N = 82 isotones near {sup 132}Sn is discovered but not resolved.
- Research Organization:
- Argonne National Laboratory (ANL)
- Sponsoring Organization:
- ER
- DOE Contract Number:
- AC02-06CH11357
- OSTI ID:
- 937914
- Report Number(s):
- ANL/PHY/JA-23700
- Journal Information:
- Phys. Rev. Lett., Journal Name: Phys. Rev. Lett. Journal Issue: 18 ; Oct. 1996 Vol. 77; ISSN 0031-9007; ISSN PRLTAO
- Country of Publication:
- United States
- Language:
- ENGLISH
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