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arXiv 1411.3085nucl-th
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用改进的量子分子动力学模型系统研究~(16)O诱导的核聚变

Systematic study of 16O-induced fusions with the improved quantum molecular dynamics model

Ning Wang, Kai Zhao, Zhuxia Li

摘要:

用改进的量子分子动力学(ImQMD)模型系统地研究了16 O轰击62 Ni,65 Cu,74 Ge,148 Nd,180 Hf,186 W,208 Pb,238 U的重离子聚变反应.在库仑势垒附近和以上的能量的融合截面可以合理地再现通过使用这个半经典的微观输运模型与参数集SkP* 和IQ 3a。同时研究了核-核动力学势和费米约束对聚变过程的影响。在重离子碰撞中,除了平均场外,费米约束对聚变过程的可靠描述和提高碎片的稳定性也起着关键作用。

英文摘要:

The heavy-ion fusion reactions with 16O bombarding on 62Ni, 65Cu, 74Ge, 148Nd, 180Hf, 186W, 208Pb, 238U are systematically investigated with the improved quantum molecular dynamics (ImQMD) model. The fusion cross sections at energies near and above the Coulomb barriers can be reasonably well reproduced by using this semi-classical microscopic transport model with the parameter sets SkP* and IQ3a. The dynamical nucleus-nucleus potentials and the influence of Fermi constraint on the fusion process are also studied simultaneously. In addition to the mean field, the Fermi constraint also plays a key role for the reliable description of fusion process and for improving the stability of fragments in heavy-ion collisions.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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