Neutral dissociation of hydrogen following photoexcitation of HCl at the chlorine K edge

被引：25
作者：
Hansen, DL [1 ]
Arrasate, ME
Cotter, J
Fisher, GR
Leung, KT
Levin, JC
Martin, R
Neill, P
Perera, RCC
Sellin, IA
Simon, M
Uehara, Y
Vanderford, B
Whitfield, SB
Lindle, DW
机构：
[1] Univ Nevada, Dept Chem, Las Vegas, NV 89154 USA
[2] Univ Nevada, Dept Phys, Reno, NV 89557 USA
[3] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA
[4] Univ Waterloo, Dept Chem, Waterloo, ON N2L 3G1, Canada
[5] Univ Tennessee, Dept Phys, Knoxville, TN 37996 USA
[6] Univ Paris Sud, LURE, F-91405 Orsay, France
[7] CENS, CEA, DRECAM, SPAM, F-91191 Gif Sur Yvette, France
[8] Mitsubishi Electr Corp, Amagasaki, Hyogo 661, Japan
[9] Univ Wisconsin, Dept Phys & Astron, Eau Claire, WI 54702 USA
来源：
PHYSICAL REVIEW A | 1998年 / 57卷 / 04期
关键词：
D O I：
10.1103/PhysRevA.57.2608
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Time-of-flight mass spectroscopy was used to study the relaxation dynamics of HCl following photoexcitation in the vicinity of the Cl K edge (similar to 2.8 keV) using monochromatic synchrotron radiation. At the lowest resonant excitation to the 6 sigma* antibonding orbital, almost half of the excited molecules decay by emission of a neutral H atom, mostly in coincidence with a highly charged Cln+ ion. The present work demonstrates that neutral-atom emission can be a significant decay channel for excited states with very short lifetimes (1 fs).
引用
收藏
页码：2608 / 2611
页数：4
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