eprintid: 1774
rev_number: 8
eprint_status: archive
userid: 1
dir: disk0/00/00/17/74
datestamp: 2001-09-13 00:00:00
lastmod: 2014-04-03 11:10:29
status_changed: 2012-08-14 15:02:32
type: doctoralThesis
metadata_visibility: show
creators_name: Lange, Michael
title: Competition between Reaction Channels in Electron Collisions of the Hydrogen Molecular Ion HD+
title_de: Konkurrenz zwischen Reaktionskanälen bei Elektronenstößen mit dem Wasserstoff-Molekülion HD+
ispublished: pub
subjects: 530
divisions: 851340
adv_faculty: af-13
keywords: TSRmolecule , electron , dissociative recombination , storage ring , hydrogen
cterms_swd: Elektron-Molekül-Stoß
cterms_swd: Elektronenanlagerungsreaktion
cterms_swd: Dissoziative Rekombination
cterms_swd: Wasserstoff
cterms_swd: Molekülion
note: Teile in: M. Lange, J. Levin, G. Gwinner, U. Hechtfischer, L. Knoll, D. Schwalm, R. Wester, A. Wolf, X. Urbain, D. Zajfman, Phys. Rev. Lett. 83, p. 4979 (1999). 
abstract_translated_text: The energy-differential cross-section of dissociative recombination of the HD+ molecular ion (HD+ + e -> H + D) was measured with high precision and on an absolute scale, at the heavy-ion storage ring TSR (Max-Planck-Institut für Kernphysik). The measured cross-section shows a previously unknown structure at electron energies between 1-3 eV, in correlation with the energy thresholds for the opening of additional channels in the dissociation of the intermediate neutral HD molecule. This was explained by autoionization, a process competing with dissociation, and which is related to the number of closed channels. In another experiment, first evidence was observed for vibrational excitation of initially relaxed molecular ions being stored in a heavy-ion storage ring. These processes were attributed to collisions of the stored ions with slow electrons from the ring's electron cooling device, or with molecules from the dilute residual gas in the TSR vacuum system. 
abstract_translated_lang: eng
class_scheme: pacs
class_labels: 34.80.Ht, 34.80.Gs
date: 2001
date_type: published
id_scheme: DOI
id_number: 10.11588/heidok.00001774
ppn_swb: 1643229974
own_urn: urn:nbn:de:bsz:16-opus-17748
date_accepted: 2001-06-27
advisor: HASH(0x564e1c3323e0)
language: eng
bibsort: LANGEMICHACOMPETITIO2001
full_text_status: public
citation:   Lange, Michael  (2001) Competition between Reaction Channels in Electron Collisions of the Hydrogen Molecular Ion HD+.  [Dissertation]     
document_url: https://archiv.ub.uni-heidelberg.de/volltextserver/1774/1/diss1.pdf