通过微观模型计算 8B+208Pb弹性散射截面

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中图分类号：O571.42 文献标志码：A

doi： 10.3969/j .issn.1673-5862.2025.03.006

Pb elastic scattering cross section calculated by the microscopic model

LIULing1 ，CHEN Yuze¹，LI Yang²

（1.College of Physics Science and Technology，Shenyang Normal University，Shenyang 11oo34，China; 2.Shenyang No.20 High School，Shenyang ，China）

Abstract： Modern nuclear physics experiments and theories gradually began to pay attention to the study of weakly bound nuclei near the drop line. Most research has focused on the structural properties of these nuclei. However，most of the existing theoretical studies on observable measurement off nuclear reactions are analyzed by phenomenological models，and it is diffiult to obtain the information of microscopic structure directly through theory. Therefore，the direct calculation of observable measurements of nuclear reactions through the theory of microscopic models is in urgent need of theoretical breakthrough. The reduced width amplitude of 8B nuclei is calculated using the anti-symmetrized molecular dynamics（AMD） method of a microcosmic multibody model and Woods-Saxon potential is fitted. The elastic scattering cross section of system is calculated with only elastic scatering considered. The continuum discretized coupled channels（CDCC） method is used to calculated the reaction cross section of the system at 50MeV energy. The binding energy and reduced width amplitude of 8B are calculated，and the interior of 8B is fitted. The calculated reaction cross section can describe the elastic scatering experimental data well. The CDCC method combined with the microscopic model calculation can well reproduce the measured results of the nuclear elastic scattering experiment.

Key Words： weakly bound nuclei; anti-symmetrized molecular dynamics; continuum discretized coupled channels method;reduced width amplitude;cross section

随着放射性离子束与中高能加速器的发展，在库仑势垒能量附近的弱束缚核反应引起了人们的广泛关注和研究[1]。（剩余6382字）