核反应中的多重内部反射方法研究（英文）

发布时间：2018-01-14 05:17

本文关键词：核反应中的多重内部反射方法研究（英文）　出处：《原子核物理评论》2017年02期 　论文类型：期刊论文

【摘要】：讨论了量子多重内部反射方法(MIR方法),这是一种研究核反应的更准确的量子力学方法。对于一个原子核俘获α粒子的过程,MIR方法能够给出(1)α-核势的新参数;(2)新的熔合几率。基于MIR方法我们给出了这类过程的完整量子力学描述,考虑熔合几率后MIR方法能够显著地提高实验与理论的吻合度。具体研究了α+~(40)Ca和α+~(44)Ca两类反应,给出了新的核势参数核和熔合几率。对于第一个反应理论计算值与实验的偏离比其他计算结果减少了41.72倍,对于第二个反应减少了34.06倍。进一步,基于本工作熔合几率公式,给出了两类反应截面不同的原因,这是与中子幻数N=20附近的原子核基态的球形构型和形变构型共存导致的。为了更好地理解幻数N=26附近原子核的性质,预言了α+46Ca的反应截面。
[Abstract]:Discuss the quantum multiple internal reflection method (MIR method), the quantum mechanics is the more accurate method of a nuclear reaction. The process for a nuclear capture of alpha particle, the MIR method can provide (1) a new parameter alpha nuclear potential; (2) the new fusion probability MIR method. We give a complete Description Based on the quantum mechanics of this kind of process, considering the fusion probability after MIR method can significantly improve the fit of experimental and theoretical studies. The alpha +~ (40) and Ca (44) Ca two alpha +~ reaction, given the potential parameters of nuclear and nuclear fusion probability for the new. A theoretical calculation and experimental deviation than other calculation results is reduced by a factor of 41.72 to second was reduced by 34.06 times. Further, the fusion probability formula based on the reasons given by two different reaction cross sections, which are spherical and nucleus ground near the neutron magic numbers of N=20 The configuration and configuration. The coexistence of lead to deformation in order to better understand the magic number near N=26 nuclear reaction cross section properties, alpha +46Ca was predicted.

【作者单位】：中国科学院近代物理研究所;Institute
【基金】：National Natural Science Foundation of China(11575254)~~
【分类号】：O571.4
【正文快照】： 1Introduction Our understanding about nuclear interactions is based on experimental information about nuclear reactions.Today,semiclassical methods are very popular in quantum description of these reactions(decays of nuclei with emission of protons,αpa

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