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).

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收藏

页码：2608 / 2611

页数：4

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