Metastable states of diatomic hydrogen anions

Holger Kreckel, Philipp Herwig, Dirk Schwalm, M. Cizek, Robin Golser, Oded Heber, Brandon Jordon-Thaden, Andreas Wolf

Veröffentlichungen: Beitrag in BuchBeitrag in Konferenzband

Abstract

Transient states of the negative hydrogen molecule H2 have drawn attention as intermediate reaction complexes in important molecular reactions like associative detachment (AD: H + H → H2→ H2 + e) and dissociative attachment (DA: e + H2 → H2 → H + H). Recently it has been shown that metastable states of hydrogen molecular anions exist that defy both auto detachment and spontaneous dissociation for several microseconds (in the case of H2) and even milliseconds (in the case of D2). Here we present Coulomb explosion measurements for H2 and D2 that provide detailed information on the shape of the molecular wave function. We compare these experimental results with calculated wave functions obtained using a nonlocal resonance model. Our measurements confirm the predicted stabilization of H2 and D2 in states of high angular momentum.
OriginalspracheEnglisch
TitelXXVIII International Conference on Photonic, Electronic and Atomic Collisions (ICPEAC 2013)
Untertitel24–30 July 2013, Lanzhou, China
ErscheinungsortBRISTOL
Herausgeber (Verlag)IOP Publishing Ltd
Seitenumfang7
DOIs
PublikationsstatusVeröffentlicht - 2014
Veranstaltung28th International Conference on Photonic, Electronic and Atomic Collisions (ICPEAC) - Lanzhou, China
Dauer: 24 Juli 201330 Juli 2013

Publikationsreihe

ReiheJournal of Physics: Conference Series
Band488
ISSN1742-6588

Konferenz

Konferenz28th International Conference on Photonic, Electronic and Atomic Collisions (ICPEAC)
KurztitelICPEAC 2013
Land/GebietChina
OrtLanzhou
Zeitraum24/07/1330/07/13

ÖFOS 2012

  • 103014 Kernphysik

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