论文标题
原始氦的形成：一种快速而简单的计算方案
Formation of primordial helium: a rapid and simple scheme of calculation
论文作者
论文摘要
快速且相对简单的计算方案被详细阐述，并应用于氦的宇宙学重组。采用非层次主义库仑格林的功能，碰撞电子的波函数以适用于计算的积分形式表示。 Hartree-Fock波形描述了氦气的结合电子。自由结合的跃迁概率是激发氦气的激发态，以及以不同模式计算的氦气中界限过渡的概率。据表明，自由结合的过渡概率弱取决于碰撞电子与纯库仑偏离电荷z = 1的偏移的程度，而这些概率在很大程度上取决于选择与重组相关的活性电子的波函数的选择。
A rapid and relatively simple scheme of calculation is elaborated and applied to cosmological recombination of helium. Employing the nonrelativistic Coulomb Green's function, a wavefunction of a colliding electron is represented in an integral form applicable for calculations. Bound electrons of helium are described by the Hartree-Fock wavefunctions. The free-bound transition probabilities into excited states of helium, and the probabilities of bound-bound transitions in helium are calculated in different modes. It is revealed that free-bound transition probabilities weakly depend on to what extent a field experienced by a colliding electron deviates from the purely Coulomb field with charge Z=1, whereas these probabilities strongly depend on the choice of a wavefunction of a bound active electron involved in recombination.
