A self-consistent method to analyze the effects of the positive Q -value neutron transfers on fusion
A self-consistent method to analyze the effects of the positive Q -value neutron transfers on fusion
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分析正Q值中子转移对聚变影响的自洽方法
DOI：
10.1016/j.physletb.2016.01.058
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发表时间：
2016
影响因子：
4.4
通讯作者：
Wang D. X.
中科院分区：
文献类型：
--
作者：
Jia H. M.;Lin C. J.;Yang L.;Xu X. X.;Ma N. R.;Sun L. J.;Yang F.;Wu Z. D.;Zhang H. Q.;Liu Z. H.;Wang D. X.
考虑到目前核-核势计算中需要外部参数来描述的局限性以及耦合通道计算中的耦合问题，本文提出了一种改进的不需要外部参数的方法来克服这一局限性，并在CCFULL计算的基础上对正Q值中子转移（PQNT）效应进行了整理。Ca+ Ca，S，Ca+ Sn，S，Ca+ Zr的对应分析为PQNT相关的残余增强（RE）提供了可靠的证据和定量评价。此外，尽管多中子转移Q值相似，但S32，Ca 40+ Zr 94的RE比S32，Ca 40+ Zr 96显示出意想不到的更大的增强。该方法对融合模型进行了较为严格的检验，有助于挖掘其内在的物理机制。
Considering the present limitation of the need for external parameters to describe the nucleus–nucleus potential and the couplings in the coupled-channels calculations, this work introduces an improved method without adjustable parameter to overcome the limitation and then sort out the positive Q-value neutron transfers (PQNT) effects based on the CCFULL calculations. The corresponding analysis for Ca+ Ca, S, Ca+ Sn, and S, Ca+ Zr provides a reliable proof and a quantitative evaluation for the residual enhancement (RE) related to PQNT. In addition, the RE for S 32, Ca 40+ Zr 94 shows an unexpected larger enhancement than S 32, Ca 40+ Zr 96 despite the similar multi-neutron transfer Q-values. This method should rather strictly test the fusion models and be helpful for excavating the underlying physics.