Proton production probability in the dissociative photoionization of H/sub 2/

Journal Article · Sat Sep 15 04:00:00 EDT 1984 · J. Chem. Phys.; (United States)

OSTI ID:6622937

Masuoka, T

We report the proton production probability in the dissociative photoionization of H/sub 2/ from its threshold to 36 eV. The method depends on differentiating the observed ratios of H/sup +//H/sup +//sub 2/ with respect to the incident photon energy. The probability presented shows at least three states are involved in this energy region and is attributed to protons formed through the ground state /sup 2/..sigma../sup +//sub g/(1ssigma/sub g/) of H/sup +//sub 2/, the two-electron excited state /sup 1/..sigma../sup +//sub u/(2psigma/sub u/2ssigma/sub g/) of H/sub 2/, and the first excited state /sup 2/..sigma../sup +//sub u/(2psigma/sub u/) of H/sup +//sub 2/ by comparing the present results with other observations and theoretical calculations. Further the results indicate that interference between the direct (/sup 2/..sigma../sup +//sub g/) and resonant (/sup 1/..sigma../sup +//sub u/) processes produces an appreciable amount of protons at photon energies of 20--25 eV.

• Research Organization: Research Institute for Atomic Energy, Osaka City University, Sugimoto 3-3-138, Sumiyoshi-ku, Osaka 558, Japan
• OSTI ID: 6622937
• Journal Information: J. Chem. Phys.; (United States), Journal Name: J. Chem. Phys.; (United States) Vol. 81:6; ISSN JCPSA
• Country of Publication: United States
• Language: English

Related Subjects

640302* -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
74 ATOMIC AND MOLECULAR PHYSICS
BARYONS
BREMSSTRAHLUNG
DISSOCIATION
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
ELEMENTS
ENERGY LEVELS
EXCITED STATES
FERMIONS
HADRONS
HYDROGEN
IONIZATION
NONMETALS
NUCLEONS
PARTICLE PRODUCTION
PHOTOIONIZATION
PROBABILITY
PROTONS
RADIATIONS
SYNCHROTRON RADIATION