Dissociative decay of n = 3 levels in H/sub 2/. I. Populated in charge exchange of H/sub 2/ /sup +/ with Cs

Journal Article · Sat Nov 01 04:00:00 EST 1986 · Phys. Rev. A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.34.3847· OSTI ID:5085925

de Bruijn, D P; Neuteboom, J; Govers, T R; Los, a J

Rotationally resolved spectra of kinetic energy releases epsilon-c in predissociations of H/sub 2/, after dissociative charge exchange of H/sub 2/ /sup +/ with Cs atoms, are obtained. The experiments are performed with natural and with pure parahydrogen. The predissociations with epsilon-c<1.9 eV constitute less than 5% of the total amount of dissociations to HXchemically bondH at a beam energy of 5 keV. All strong rotational peaks observed could be attributed to n = 3 Rydberg states which predissociate to H(1s)+H(2l). Vibrational-rotational series are observed of the d /sup 3/Pi/sub u//sup +/, D /sup 1/Pi/sub u//sup +/, and J /sup 1/..delta../sub g//sup +/ states. Predissociation by barrier tunneling is reported of v = 4 levels of the h /sup 3/..sigma../sub g//sup +/ state and of v = 4 and 5 levels of the i /sup 3/Pi/sub g/ state. Selectivity of the charge-exchange process for different n = 3 states, or even for different parity states, is concluded.

• Research Organization: Stichting voor Fundamenteel Onderzoek der Materie, Institute for Atomic and Molecular Physics, Kruislaan 407, 1098X Amsterdam, The Netherlands
• OSTI ID: 5085925
• Journal Information: Phys. Rev. A; (United States), Journal Name: Phys. Rev. A; (United States) Vol. 34:5; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular &amp; Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ALKALI METALS
ATOM COLLISIONS
CATIONS
CESIUM
CHARGE EXCHANGE
CHARGED PARTICLES
COLLISIONS
DISSOCIATION
ELEMENTS
ENERGY LEVELS
EXCITED STATES
HYDROGEN IONS
HYDROGEN IONS 2 PLUS
ION COLLISIONS
ION-ATOM COLLISIONS
IONS
LYMAN LINES
METALS
MOLECULAR IONS
PREDISSOCIATION
RADIATIVE DECAY
ROTATIONAL STATES
VIBRATIONAL STATES