...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Physical review, C >Probing the production mechanism of neutron-rich nuclei in multinucleon transfer reactions
【24h】

Probing the production mechanism of neutron-rich nuclei in multinucleon transfer reactions

机译：富含中子核的多核转移反应生产机制

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Aiming at understanding the production mechanism of new neutron-rich nuclei around N = 126, the multinucleon transfer reaction Xe-136 + Pb-208 at E-c.m. = 450 MeV has been investigated in the framework of the three-dimensional time-dependent Hartree-Fock (TDHF) theory and a statistical model GEMINI. The calculated production cross sections of the targetlike fragments are compared with the experimental data. The model predictions can well describe the yields of nuclei near the target. The reactions of Sn-132 + Pb-208 at different incident energies above the Coulomb barrier are also studied. It is shown that this system is a better candidate for producing N = 126 neutron-rich nuclei than using Xe-136 as the projectile because of the favored proton pickup and neutron stripping transfer channels. The study of de-excitation effect indicates that the suitable incident energy to synthesize neutron-rich nuclei should be just above the Coulomb barrier. It is also found in Sn-132 + Pb-208 that about 50 new neutron-rich nuclei with the production cross sections larger than 10(-6) mb are obtained dominantly through quasifission and deep-inelastic collisions. However, those with N = 126 are mainly from grazing collisions. Comparison with the results of the GRAZING model is also discussed.
机译：旨在了解N = 126周围的新中子核核的生产机制，在E-C.M.M中的多核转移反应XE-136 + PB-208。在三维时间依赖的Hartree-Fock（TDHF）理论和统计模型Gemini的框架内已经调查了450 MeV。将靶状物片段的计算的产生横截面与实验数据进行比较。模型预测可以很好地描述目标附近的核的产量。还研究了SN-132 + PB-208在基库仑屏障上方的不同入射能中的反应。结果表明，该系统是生产N = 126中子核核的更好候选者，而不是使用XE-136作为射弹，因为有利的质子拾取和中子剥离转移通道。对去激发效果的研究表明，合成富含中子核的合适的入射能应仅在库仑屏障之上。它还发现在SN-132 + PB-208中，通过Quasifision和深入弹性碰撞，优异地获得大约50个具有大于10（-6）MB的产生横截面的大约50个新的中子核。然而，具有n = 126的人主要来自放牧碰撞。还讨论了与放牧模型的结果的比较。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号