Magic Nucleus S
- and others
Prompt and delayed {gamma} -ray cascades in doubly magic <hspace SPACE=''-0.167''>{sup 132}Sn and its neighbor <hspace SPACE=''-0.167''>{sup 131}Sn have been studied at Gammasphere using a <hspace SPACE=''-0.167''>{sup 248}Cm fission source. Isotopic assignments of unknown {gamma} rays were based on coincidences with known transitions in A=112--116 Pd fission partners. The yrast level spectra of both tin nuclei are interpreted using empirical nucleon-nucleon interactions from the <hspace SPACE=''-0.167''>{sup 132}Sn and <hspace SPACE=''-0.167''>{sup 208}Pb regions. Results include identification of the ({nu}f{sub 7/2} h{sup -1}{sub 11/2})9{sup +} aligned state in <hspace SPACE=''-0.167''>{sup 132}Sn and of extensive ({nu}f{sub 7/2} h{sup -2}{sub 11/2}) , ({nu}f{sub 7/2} d{sup -1}{sub 3/2} h{sup -1}{sub 11/2}) and ({nu}h{sup -1}{sub 11/2} x 3{sup -}) multiplets in <hspace SPACE=''-0.167''>{sup 131}Sn . The previously reported {beta}{sup -} decay of an unusual <hspace SPACE=''-0.167''>{sup 131}In high-spin isomer to levels in <hspace SPACE=''-0.167''>{sup 131}Sn is also elucidated.
- Research Organization:
- Argonne National Laboratory (ANL), Argonne, IL
- Sponsoring Organization:
- (US)
- DOE Contract Number:
- FG02-87ER40346; W-31-109-ENG-38
- OSTI ID:
- 40277331
- Journal Information:
- Physical Review Letters, Vol. 87, Issue 6; Other Information: DOI: 10.1103/PhysRevLett.87.062502; Othernumber: PRLTAO000087000006062502000001; 026132PRL; PBD: 6 Aug 2001; ISSN 0031-9007
- Publisher:
- The American Physical Society
- Country of Publication:
- United States
- Language:
- English
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