Open AccessAbsolute cross sections and kinetic energy release distributions for electron-impact dissociation of HD2+
Author(s) -
Pierre Defrance,
Jozo Jureta,
Julien Lecointre,
Xavier Urbain
Publication year - 2009
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/194/6/062011
Subject(s) - electron ionization , ionization , atomic physics , dissociation (chemistry) , ion , dissociative , kinetic energy , excitation , electron , chemistry , isotopomers , ionic bonding , physics , molecule , nuclear physics , organic chemistry , medicine , quantum mechanics , pharmacology
Absolute cross sections results are reported for electron impact dissociative excitation and ionization of HD/sub 2//sup +/ in the electron energy range from threshold to 2.5 keV. Direct and resonant dissociative excitation is found to dominate the production of possible ionic products in the low energy region. Dissociative ionization is observed for H/sup +/ and D/sup +/ products only. The lowness of dissociative ionization signals both for HD/sup +/ and for D/sub 2//sup +/ indicate that molecular ions are dominantly formed in dissociative states, a situation which totally contrasts with the D/sub 3//sup +/ isotopomer case.Anglai