| Influence of Isotope on Shell Effects of Pre-scission Particle Evaporation |
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| 作者姓名： | YE Wei CHEN Na |
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| 作者单位： | [1]Department of Physics, Southeast University, Nanjing 210096, China [2]Department of Applied Mathematics, Nanjing University of Finance ＆ Economics, Nanjing 210003, China |
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| 基金项目： | The project supported by National Natural Science Foundation of China under Grand Nos. 10405007 and 90412014 and the Teaching and Researching Foundation for the Excellent Teachers of Southeast University |
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| 摘 要： |
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| 关 键 词： | 同位素 原子核物理学 粒子 蒸发作用 Smoluchowski方程 |
| 收稿时间： | 2004-09-07 |
| 修稿时间： | 2004-09-072005-04-14 |
Influence of Isotope on Shell Effects of Pre-scission Particle Evaporation |
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| YE Wei CHEN Na.Influence of Isotope on Shell Effects of Pre-scission Particle Evaporation[J].Communications in Theoretical Physics,2005,44(2):343-346. |
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| Authors: | YE;Wei;CHEN;Na |
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| Abstract: | The shell effects on the particle evaporation prior to fission for three Pb isotopes, ^204Pb, ^208Pb, and ^212pb,as well as three Sn isotopes, ^128Sn, ^132Sn, and ^136Sn, are explored by a diffusion model. Calculations show that the magnitude of shell effects in the emission of particles changes with the neutron-to-proton ratio N/Z of these fissioning nuclei, and this change is affected significantly by the spin and excitation energy of the system. It is shown that high angular momentum enhances the dependence of shell effects on the N/Z while high excitation energy weakens such a dependence. |
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| Keywords: | isotopic effect shell effect pre-scission particle emission Smoluchowski equation |
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