A polynomial approximation for the scattering wavefunction of an arbitrary spherically symmetric potential

A new variational approach is proposed to calculate scattering phase shifts.In this approach,the variational parameter is contained not explicitly in the trial function but in the boundary conditions that the scattering wavefunction should satisfy.It was found that a high accuracy could be reached.Furthermore,the scattering wavefunction appears as a polynomial of finite orders in the interior region.This expression is convenient for applications.     

双电子原子系统内电子云的变化

本文主要通过对形状密度的分析,研究了双电子原子系统的内电子云如何随外电子的运动而变化,考虑了外电子远离内电子云和靠近内电子云的情况。探讨了氦原子具有不同K-量子数的¹S^e态的几何特征和内部运动特征,探讨了能量转移机制和径-径(radial-radial)关联的细节。发现内电子云作为一个整体的运动和外电子的运动之间有强烈的关联。     

奇偶波干涉对核子关联的影响

以¹⁸O的一对壳外核子为事例,研究了奇偶波之间的干涉对于壳外核子对的空间关联的影响.     

ELECTRON-ELECTRON CORRELATION IN THE HELIUM 3De DOUBLY EXCITED STATES

The qualitative features of the electron-electron correlation in the helium ³D^e doubly excited states have been investigated via an example of the N = 3, n=4 series. The angular, radial-angular and radial-radial correlations have been shown in detail and the anisotropism of the electronic cloud has been found. The features of the ³D^e states have been compared with those of the L≤1 states.     

对称性对四体系统结构和内部运动的影响

文中用谐振子乘积基展开法求解了四体系统的Schrdinger方程.通过分析波函数及形状密度函数在多维坐标空间的分布,比较了四体全对称0⁺态,四体金对称0^－态和四体全反对称0⁺态,四体全反对称0^－态的结构和内部运动的差异;讨论了对称性的影响.     

电子关联与硼原子四个共壳P态的定性特征

研究了硼的²Ｐ⁰₁（基态），²Ｐ⁰₂，²Ｐ^e₁和⁴Ｐ^e₁４个Ｎ＝２共壳Ｐ态结构的定性特征，表明了电子关联对自旋极性的依赖，显示了各量子态对取向（相对于总角动量Ｌ）的偏爱，研究了它们的几何结构和内部运动模式，侧重探讨了量子力学对称性对微观系统的决定性效应。 关键词：     

对Glauber理论的相对论修正及散射振幅的高能行为

本文把Glauber理论的基础——薛定格方程改为一个相对论性方程,求出该方程的Eikonal解,并进一步用它探讨了散射振幅的高能行为及其与唯象核力的关系.本文还提出了对Glauber理论加横动量和纵动量改变量修正的方法.     

多粒子体系的相对论Glauber展开

本文在复合粒子场论基础上,应用本质上与Glauber完全相同的物理近似,推广了广义梯形求和方法,得到一个高能强子在复合粒子上的多体散射振幅表达式.这个表达式是Glauber多体散射振幅的相对论推广,包括每对两体碰撞的相对论反冲,和厚度函数的Lorentz-Boost.这对进一步研究这些相对论修正的实际效果是有意义的.     

Bakamjian-Thomas方程的大动量转移散射振幅与核力排斥心的高度

本文利用Eikonal波函数Born展开的方法,得到B-T方程的大动量转移散射振幅.通过与质心系总能为6.15 GeV的p-p散射实验资料比较,在位阱取为Gauss型组合的前提下,定出核力排斥心的高度约为0.37GeV,因而否定了无限高硬排斥心的存在。此外,用这一方法还可以研究其它高能粒子的强相互作用及其随能量变化的规律。     

ELECTRON-ELECTRON CORRELATION IN THE HELIUM 3De DOUBLY EXCITED STATES

The qualitative features of the electron-electron correlation in the helium ³D^e doubly excited states have been investigated via an example of the N = 3, n=4 series. The angular, radial-angular and radial-radial correlations have been shown in detail and the anisotropism of the electronic cloud has been found. The features of the ³D^e states have been compared with those of the L≤1 states.