This work reports on differential, integrated and momentum transfer cross sections for the elastic scattering of electrons and positrons off the ions of nitrogen isonuclear series (N + - N 7+ ) over the energy range 1–500 eV. Calculations of these observable quantities involve the solution of Dirac relativistic wave equation employing a pure Coulomb potential and a short range potential. The latter comprises static, exchange, polarization and absorption potentials. Effects of these individual potentials on angular distribution of elastically scattered electrons are investigated throughout this ionic series. Differential cross sections for electron and positron scattering are compared with each other to demonstrate the difference of their collision dynamics. A satisfactory agreement between our predictions and other available data, experimental and theoretical, is observed.

中文翻译：

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## IMG ##弹性散射的理论研究[http://ej.iop.org/images/1402-4896/95/8/085403/toc_psab9cfbieqn1.gif] {$ {{\ rm {e}}} ^ {\ pm} $}由氮同核系列离子组成

这项工作报道了在能量范围为1–500 eV的情况下，电子和正电子从氮等核系列（N +-N 7+）离子中发生弹性散射的微分，积分和动量传递截面。这些可观测量的计算涉及使用纯库仑势和短程势的狄拉克相对论波动方程的解。后者包括静电，交换，极化和吸收电势。在整个离子序列中，研究了这些单个电势对弹性散射电子的角分布的影响。比较电子和正电子散射的微分截面，以证明它们碰撞动力学的差异。我们的预测与其他可用数据之间达成了令人满意的协议，