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arXiv 1004.2677nucl-th
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产生超重元素的热聚变和冷聚变反应的入口道动力学

Entrance Channel Dynamics of Hot and Cold Fusion Reactions Leading to Superheavy Elements

A. S. Umar, V. E. Oberacker, J. A. Maruhn, P. -G. Reinhard

摘要:

我们研究的入口通道动力学反应$\mathrm{^{70}Zn}+\mathrm{^{208}Pb}$和$\mathrm{^{48}Ca}+\mathrm{^{238}U}$使用全微观的含时Hartree-Fock(TDHF)理论与密度约束。我们计算了与超重地层研究相关的激发能和俘获截面。我们讨论了$\mathrm{^{48}Ca}+\mathrm{^{238}U}$系统的离子-离子势的变形依赖性,并进行了对准角平均的捕获截面的计算。结果表明,这种无参数的方法可以产生与实验和其他理论很好的协议的结果。

英文摘要:

We investigate the entrance channel dynamics for the reactions $\mathrm{^{70}Zn}+\mathrm{^{208}Pb}$ and $\mathrm{^{48}Ca}+\mathrm{^{238}U}$ using the fully microscopic time-dependent Hartree-Fock (TDHF) theory coupled with a density constraint. We calculate excitation energies and capture cross-sections relevant for the study of superheavy formations. We discuss the deformation dependence of the ion-ion potential for the $\mathrm{^{48}Ca}+\mathrm{^{238}U}$ system and perform an alignment angle averaging for the calculation of the capture cross-section. The results show that this parameter-free approach can generate results in good agreement with experiment and other theories.

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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