Fully differential studies on single ionization of helium by slow proton impact

被引:0
作者
Hasan, A. [1 ]
Maydanyuk, N. V. [1 ]
Foster, M. [1 ]
Tooke, B. [1 ]
Nanni, E. [1 ]
Madison, D. H. [1 ]
Schulz, M. [1 ]
Voitkiv, A. [1 ]
Najjari, B. [1 ]
机构
[1] United Arab Emirates Univ, Dept Phys, Al Ain, U Arab Emirates
来源
Photonic, Electronic and Atomic Collisions | 2006年
关键词
D O I
10.1142/9789812772442_0068
中图分类号
O64 [物理化学(理论化学)、化学物理学]; O56 [分子物理学、原子物理学];
学科分类号
070203 ; 070304 ; 081704 ; 1406 ;
摘要
In this progress report, we present fully differential cross-sections (FDCS) for single ionization in 75 keV p + He collisions using cold-target recoil-ion momentum spectroscopy to measure the recoil momentum and ion energy loss spectroscopy to measure the projectile momentum. At this relatively small projectile velocity, the measured FDCS reveal no recoil peak and a backward shift of the binary peak suggesting a dominant role for the projectile-residual target ion interaction. Such signatures are not observable in single ionization by fast projectiles or electron impact. This interaction appears to be more important than the post-collision interaction, which so far was assumed to be the most important factor in higher-order effects in single ionization.
引用
收藏
页码:514 / 521
页数:8
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