Sub-barrier capture with quantum diffusion approach: Actinide-based reactions (vol 47, pg 38, 2011)

被引：0

作者：

Sargsyan, V. V. ^{[1
]}

Adamian, G. G. ^{[1
,2
]}

Antonenko, N. V. ^{[1
]}

Scheid, W. ^{[3
]}

Zhang, H. Q. ^{[4
]}

机构：

[1] Joint Inst Nucl Res, Dubna 141980, Russia

[2] Uzbek Acad Sci, Inst Nucl Phys, Tashkent 702132, Uzbekistan

[3] Univ Giessen, Inst Theoret Phys, D-35392 Giessen, Germany

[4] China Inst Atom Energy, Beijing 102413, Peoples R China

来源：

EUROPEAN PHYSICAL JOURNAL A | 2011年 / 47卷 / 03期

关键词：

Coulomb Barrier; Entrance Channel; Spherical Nucleus; Superheavy Nucleus; Reaction 48Ca;

D O I：

10.1140/epja/i2011-11039-x

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

With the quantum diffusion approach the behavior of capture cross-sections and mean-square angular momenta of captured systems are revealed in the reactions with deformed nuclei at sub-barrier energies. The calculated results are in a good agreement with existing experimental data. With decreasing bombarding energy under the barrier the external turning point of the nucleus-nucleus potential leaves the region of short-range nuclear interaction and action of friction. Because of this change of the regime of interaction, an unexpected enhancement of the capture cross-section occurs at bombarding energies far below the Coulomb barrier. There is also an effect on the dependence of the mean-square angular momentum of the captured system on the bombarding energy. From the comparison of calculated and experimental capture cross-sections, the importance of quasifission near the entrance channel is shown for the actinide-based reactions leading to superheavy nuclei.

引用

页码：1 / 11

页数：1