Isotope effects in the autoionization of superexcited 1Sigma+u(Q1) states in hydrogen
Isotope effects in the autoionization of superexcited 1Sigma+u(Q1) states in hydrogen
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氢中超激发 1Sigma u(Q1) 态自电离中的同位素效应
DOI：
10.1088/0953-4075/27/14/029
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发表时间：
1994
期刊：
影响因子：
--
通讯作者：
C. Latimer
中科院分区：
文献类型：
--
作者：
J. Geddes;K. Dunn;N. Kouchi;M. A. Mcdonald;V. Srigengan;C. Latimer
测量了 27.5-32.0 eV 光子解离 H2 和 D2 时产生的质子和氘核碎片的动能谱。结果表明，结果可以提供 1Sigmau(1) 超激发态的自电离态宽度作为核间分离 R 的函数的实验估计。实验确定的态宽度明显大于理论预测，特别是在 R 较大时。此外，还存在意想不到的大同位素效应。
The kinetic energy spectra of the fragment protons and deuterons produced in the dissociative photoionization of H2 and D2 by 27.5-32.0 eV photons have been measured. It is shown that the results can provide an experimental estimate of the autoionizing state width of the 1Sigmau(1) superexcited state as a function of internuclear separation R. The experimentally determined state widths are significantly larger than theoretical predictions especially at large R. Furthermore there is an unexpectedly large isotope effect.