Unveiling Residual Molecular Binding in Triply Charged Hydrogen Bromide

Journal Article · Fri Mar 11 00:00:00 EST 2011 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.106.103002· OSTI ID:21562081

Penent, F; Lablanquie, P; Palaudoux, J; Gamblin, G; Carniato, S ^[1]; Andric, L ^[2]; Hikosaka, Y ^[3]; Ito, K ^[4]

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1. UPMC, Universite Paris 06, LCPMR, 11 rue Pierre et Marie Curie, 75231 Paris Cedex 05 (France); CNRS, LCPMR (UMR 7614), 11 rue Pierre et Marie Curie, 75231 Paris Cedex 05 (France)
2. UPMC, Universite Paris 06, LCPMR, 11 rue Pierre et Marie Curie, 75231 Paris Cedex 05 (France); CNRS, LCPMR (UMR 7614), 11 rue Pierre et Marie Curie, 75231 Paris Cedex 05 (France); Universite Paris-Est, 5 boulevard Descartes, 77454 Marne-la-Vallee Cedex 2 (France)
3. Department of Environmental Science, Niigata University, Niigata 950-2181 (Japan)
4. Photon Factory, Institute of Materials Structure Science, Oho, Tsukuba 305-0801 (Japan)

We present an experimental and theoretical study of triply charged hydrogen bromide ions formed by photoionization of the inner 3d shell of Br. The experimental results, obtained by detecting the 3d photoelectron in coincidence with the two subsequent Auger electrons, are analyzed using calculated potential energy curves of HBr{sup 3+}. The competition between the short-range chemical binding potential and the Coulomb repulsion in the dissociative process is shown. Two different mechanisms are observed for double Auger decay: one, a direct process with simultaneous ejection of two Auger electrons to final HBr{sup 3+} ionic states and the other, a cascade process involving double Auger decay characterized by the autoionization of Br*{sup +} ion subsequent to the HBr{sup 2+} fragmentation.

• OSTI ID: 21562081
• Journal Information: Physical Review Letters, Vol. 106, Issue 10; Other Information: DOI: 10.1103/PhysRevLett.106.103002; (c) 2011 American Institute of Physics; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
AUTOIONIZATION
BROMINE IONS
COULOMB FIELD
DECAY
ELECTRONS
FRAGMENTATION
HYDROBROMIC ACID
PHOTOIONIZATION
POTENTIAL ENERGY
POTENTIALS
SHELLS
BROMINE COMPOUNDS
CHARGED PARTICLES
ELECTRIC FIELDS
ELEMENTARY PARTICLES
ENERGY
FERMIONS
HALOGEN COMPOUNDS
HYDROGEN COMPOUNDS
INORGANIC ACIDS
INORGANIC COMPOUNDS
IONIZATION
IONS
LEPTONS