On the synthesis of neutron-rich isotopes along the N = 126 shell in multinucleon transfer reactions
On the synthesis of neutron-rich isotopes along the N = 126 shell in multinucleon transfer reactions
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DOI：
10.1140/epja/i2014-14161-3
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发表时间：
2014-10
期刊：
影响因子：
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通讯作者：
O. Beliuskina;S. Heinz;V. Zagrebaev;V. Comas;C. Heinz;S. Hofmann;R. Knöbel;M. Stahl;D. Ackermann;F. Heßberger;B. Kindler;B. Lommel;J. Maurer;R. Mann
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文献类型：
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作者：
O. Beliuskina;S. Heinz;V. Zagrebaev;V. Comas;C. Heinz;S. Hofmann;R. Knöbel;M. Stahl;D. Ackermann;F. Heßberger;B. Kindler;B. Lommel;J. Maurer;R. Mann
我们对库仑势垒能量下重离子碰撞中的深层非弹性多核子转移反应进行了实验和理论研究。我们的目标是研究在沿着闭合中子壳层 N= 126 的天体物理感兴趣区域中，深层非弹性转移是否优于碎裂反应来产生富中子同位素。在这里，我们将介绍 64Ni +207Pb 在 5.0 MeV/核子反应中获得的结果。该实验是在 GSI 达姆施塔特的速度过滤器 SHIP 上进行的。富中子一侧出现了几种转移产物，但没有观察到新的同位素。将测得的转移截面和产量与碎片反应的结果进行比较，得出了有趣的结论。
We performed experimental and theoretical studies of deep inelastic multinucleon transfer reactions in heavy-ion collisions at Coulomb barrier energies. Our goal was to investigate if deep inelastic transfer is superior to fragmentation reactions for producing neutron-rich isotopes in the astrophysically interesting region along the closed neutron shellN= 126 . Here, we will present our results obtained in reactions of64Ni +207Pb at 5.0 MeV/nucleon. The experiment was performed at the velocity filter SHIP at GSI Darmstadt. Several transfer products on the neutron-rich side were populated but new isotopes were not observed. A comparison of the measured transfer cross-sections and production yields with those from fragmentation reactions allowed for interesting conclusions.