低能解离复合中的各向异性碎裂
原子物理
2010-01-22 v1 化学物理
摘要
在高达 75 meV 电子碰撞能量的密集能量网格上，通过双合并束实验研究了中性解离复合碎片的碎裂角和动能释放。发现由勒让德多项式描述的各向异性以及提取的转动态贡献，在同样狭窄的能量尺度上变化，如同转动平均速率系数。首次可以推导出高于 2 阶的角度依赖性。此外，观察到零碰撞能量下的轻微各向异性，这是由电子束的扁平速度分布引起的。
引用
@article{arxiv.0810.0417,
title = {Anisotropic fragmentation in low-energy dissociative recombination},
author = {S. Novotny and H. Rubinstein and H. Buhr and O. Novotný and J. Hoffmann and M. B. Mendes and D. A. Orlov and M. H. Berg and M. Froese and A. S. Jaroshevich and B. Jordon-Thaden and C. Krantz and M. Lange and M. Lestinsky and A. Petrignani and I. F. Schneider and D. Shafir and F. O. Waffeu Tamo and D. Zajfman and D. Schwalm and A. Wolf},
journal= {arXiv preprint arXiv:0810.0417},
year = {2010}
}
备注
8 pages, 4 figures; The Article will be published in the proceedings of DR 2007, a symposium on Dissociative Recombination held in Ameland, The Netherlands (18.-23. July 2008); Reference 19 has been published meanwhile in S. Novotny, PRL 100, 193201 (2008)