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Nuclear mean field and double-folding model of the nucleus-nucleus optical potential

机译：核平均场和核核光电位的双折叠模型

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摘要

Realistic density dependent CDM3Yn versions of the M3Y interaction have been used in an extended Hartree-Fock (HF) calculation of nuclear matter (NM), with the nucleon single-particle potential determined from the total NM energy based on the Hugenholtz-van Hove theorem that gives rise naturally to a rearrangement term (RT). Using the RT of the single-nucleon potential obtained exactly at different NM densities, the density and energy dependence of the CDM3Yn interactions was modified to account properly for both the RT and observed energy dependence of the nucleon optical potential. Based on a local density approximation, the double-folding model of the nucleus-nucleus optical potential has been extended to take into account consistently the rearrangement effect and energy dependence of the nuclear mean-field potential, using the modified CDM3Yn interactions. The extended double-folding model was applied to study the elastic C-12+C-12 and O-16+C-12 scattering at the refractive energies, where the Airy structure of the nuclear rainbow has been well established. The RT was found to affect significantly the real nucleus-nucleus optical potential at small internuclear distances, giving a potential strength close to that implied by the realistic optical model description of the Airy oscillation.
机译：现实密度依赖性CDM3yn版本的M3Y交互的版本已在核物质（NM）的扩展Hartree-Fock（HF）计算中使用，利用基于Hugenholtz-Van Hove定理的NM能量来确定核心单粒子电位这对重新排列术语（RT）自然产生。使用完全在不同NM密度的单核电站的RT，修饰CDM3yn相互作用的密度和能量依赖性，以适当地估计核心光电位的RT和观察到的能量依赖性。基于局部密度近似，使用改性的CDM3yn相互作用，已经扩展了核 - 核光电位的双折叠模型，以始终如一地考虑核平均场势的重排效果和能量依赖性。应用了扩展的双折叠模型来研究折射能在折射能下的弹性C-12 + C-12和O-16 + C-12散射，其中核彩虹的通风结构已经很好地建立。发现RT在小型核距离下显着影响真正的核 - 核光电位，使得潜在的强度接近通风振荡的现实光学模型描述。

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