Crossed-beam measurements of differential cross sections for elastic scattering and charge exchange in low-energy Ar/sup +/-Ar collisions

Journal Article · Sat Apr 01 00:00:00 EST 1978 · Phys. Rev., A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.17.1337· OSTI ID:6842730

Vestal, M L; Blakley, C R; Futrell, J H

Differential cross sections for Ar/sup +/-Ar collisions have been measured at four laboratory energies in the range 2.7--20 eV and laboratory scattering angles from 2 to 90 deg using a crossed-beam apparatus. Data are presented as absolute differential cross sections in the center-of-mass coordinate system as functions of relative translational energy and center-of-mass scattering angle. The data presented should be sufficient to allow rather precise determination of the long-range portion of the Ar/sup +/-Ar interaction potentials. Preliminary interpretation of the rainbow scattering data gives a dissociation energy D/sub e/ for the /sup 2/..sigma../sup +//sub u/ state of Ar/sub 2//sup ts+/ of 1.40 +- 0.05 eV.

• Research Organization: Department of Chemistry, University of Utah, Salt Lake City, Utah 84112
• OSTI ID: 6842730
• Journal Information: Phys. Rev., A; (United States), Vol. 17:4
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ARGON
ION-ATOM COLLISIONS
ARGON IONS
ATOMIC IONS
CHARGE EXCHANGE
DIFFERENTIAL CROSS SECTIONS
ELASTIC SCATTERING
ATOM COLLISIONS
CHARGED PARTICLES
COLLISIONS
CROSS SECTIONS
ELEMENTS
ION COLLISIONS
IONS
NONMETALS
RARE GASES
SCATTERING
640304* - Atomic
Molecular & Chemical Physics- Collision Phenomena