Fragmentation of H2^2+ ions following double electron capture in slow Xe23+ and O5+ + H2 collisions
Fragmentation of H2^2+ ions following double electron capture in slow Xe23+ and O5+ + H2 collisions
复制标题
Xe23 和 O5 H2 缓慢碰撞中双电子捕获后 H2^2 离子的碎裂
DOI：
10.1088/0953-4075/33/7/102
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发表时间：
2000
期刊：
影响因子：
--
通讯作者：
X. Husson
中科院分区：
文献类型：
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作者：
F. Frémont;C. Bedouet;M. Tarisien;L. Adoui;A. Cassimi;A. Dubois;J. Chesnel;X. Husson
实验研究了345keV Xe23++H2和75keVO5++H2碰撞中产生的H+碎片的能量分布随探测角度的变化。对于这两个体系，实验都显示出与分子库仑爆炸的强烈偏差。为了理解能谱，还进行了二体和三体模型计算。在最重的Xe23+粒子的碰撞中，两体计算很好地再现了实验数据，表明传递给靶的反冲能量在碎片能量分布中起着重要的作用。另一方面，对于O5++H2系统，计算与实验的偏差表明，出射弹丸与每个碎片之间的相互作用起着主要作用。
The energy distributions of H+ fragments produced in 345 keV Xe23+ + H2 and 75 keV O5+ + H2 collisions have been investigated experimentally as a function of the detection angle. For both systems, the experiment shows strong deviations from the molecular Coulomb explosion. Two- and three-body model calculations have also been performed to understand the energy spectra. In the collisions involving the heaviest projectile Xe23+ , the two-body calculations reproduce the experimental data satisfactorily, indicating that the recoil energy transferred to the target plays an important role in the fragment-energy distributions. On the other hand, for the system O5+ + H2, the deviations between calculations and experiment suggest that the interaction between the outgoing projectile and each fragment plays the major role.