Single-and-double electron loss of O2+ in collisions with argon and helium

• 来源期刊: 中国物理B（英文版）
• 关键词: ion-atom collision cross-section electron-loss effective charge
• 年，卷（期）: 2008,（7）
• 页码范围: 2590-2593
• 页数: 4页
• 语种: 英文

摘要

This paper reports that the ratios of double to single electron loss cross-section (R) of O2+ in collision with Ar and He at the velocity of 1-4ν0 (ν0 is the Bohr velocity) have been obtained by the coincidence technique. The trend of R-V in the experiment indicates that the effective charge varies with injected velocity. The effective charge can be obtained by the n-body classical trajectory Monte Carlo method, which is interpreted by the molecular Coulomb over barrier model.