Identification of inelastic processes in 4. 0-keV H[sub 2][sup +]-He collisions using L[sub [alpha]]-photon--particle coincidence techniques

Journal Article · Thu Dec 01 04:00:00 EST 1994 · Physical Review A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.50.4899· OSTI ID:7094833

Calabrese, D; Wiese, L M; Yenen, O; Jaecks, D H ^[1]

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1. Behlen Laboratory of Physics, University of Nebraska, Lincoln, Nebraska 68588-0111 (United States)

The laboratory energy distribution of protons in coincidence with L[sub [alpha]] photons produced in collision-induced dissociation of 4.0-keV H[sub 2][sup +] on He targets has been measured for protons that are collected along the incident-beam direction. An approximate energy distribution of proton--L[sub [alpha]]-photon pairs in the projectile frame is obtained by transforming the measured laboratory distribution. The transformed results reveal that the dominant processes for production of near-zero energy projectile frame protons are the 1[ital s][sigma][sub [ital g]] to 2[ital p][pi][sub [ital u]] and 3[ital d][sigma][sub [ital g]] transition at 2.5--3 times the equilibrium separation of H[sub 2][sup +]. This transformation technique provides a simple method of identifying inelastic processes from the convoluted laboratory energy distributions of the fragments produced in the dissociative excitation of the H[sub 2][sup +] molecule.

• OSTI ID: 7094833
• Journal Information: Physical Review A; (United States), Journal Name: Physical Review A; (United States) Vol. 50:6; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

664300* -- Atomic & Molecular Physics-- Collision Phenomena-- (1992-)
74 ATOMIC AND MOLECULAR PHYSICS
ATOM COLLISIONS
BARYONS
CATIONS
CHARGED PARTICLES
COINCIDENCE METHODS
COLLISIONS
COUNTING TECHNIQUES
DISSOCIATION
ELEMENTARY PARTICLES
ELEMENTS
EMISSION
ENERGY RANGE
ENERGY SPECTRA
FERMIONS
FLUIDS
GASES
HADRONS
HELIUM
HYDROGEN IONS
INELASTIC SCATTERING
ION COLLISIONS
ION-ATOM COLLISIONS
IONS
KEV RANGE
KEV RANGE 01-10
LYMAN LINES
MOLECULAR IONS
NONMETALS
NUCLEONS
PHOTON EMISSION
PROTONS
RARE GASES
RESONANCE
SCATTERING
SPECTRA