Recent Experiments on Asymmetric Fission of Medium and Light Nuclei
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摘要: 介绍了轻中等质量核非对称裂变研究的新进展.通过对64,58Ni+12C和78,82,86Kr+12C反应复杂碎片的激发函数测量,发现流行的转动液滴模型和转动有限力程模型均不能复现实验的非对称裂变位垒数据.The excitation functions were measured for complex fragments with atomic number Z=4—25 emitted from the compound nuclei~(70,76)Se and~(90,94,98)Mo produced in the reactions~(64,58)Ni+~(12)C and~(78,82,86)Kr+~(12)C. The extracted mass asymmetric fission barriers have been compared with those calculated from macroscopic nuclear models.Abstract: The excitation functions were measured for complex fragments with atomic number Z=4—25 emitted from the compound nuclei~(70,76)Se and~(90,94,98)Mo produced in the reactions~(64,58)Ni+~(12)C and~(78,82,86)Kr+~(12)C. The extracted mass asymmetric fission barriers have been compared with those calculated from macroscopic nuclear models.
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Key words:
- 64 /
- 58Ni+12C /
- 78 /
- 82 /
- 86Kr+12C /
- excitation function measurement /
- asymmetric fission barrier
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