INTERACTION POTENTIALS FROM THE VELOCITY DEPENDENCE OF TOTAL ATOM-ATOM SCATTERING CROSS SECTIONS

Journal Article · Sat Jun 15 04:00:00 EDT 1963 · Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D

DOI:https://doi.org/10.1103/PhysRev.130.2333· OSTI ID:4671034

Rothe, E W; Rol, P K; Bernstein, R B

Methods are described that yield the interatomic potential energy parameters from the velocity (v) dependence of the total scattering cross section (Q). These are applied to measurements of the scattering of lithium by the rare gases. The Lennard-Jones potential is assumed. The cross sections for scattering by argon, krypton, and xenon were measured in a low-energy region, where Q(v) is undulatory. From the extrema velocities the product olytic C and may be obtained, where is the depth of the interatomic potential well and olytic C and is the interatomic separation at the zero- of potential energy. From the absolute value of Q, the parameter olytic C and may be determined separately. These quantities were also deduced for the scattering by helium and neon, which were studied in the high-energy region. Using the experimental and olytic C and , theoretical curves of Q(v), calculated by a partial-wave analysis, agree well with the experimental results. A minimum to the number of diatom bound states was also established. (auth)

• Research Organization: General Dynamics/Astronautics, San Diego, Calif.
• NSA Number: NSA-17-025933
• OSTI ID: 4671034
• Journal Information: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D, Journal Name: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D Vol. Vol: 130; ISSN PHRVA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ANGULAR MOMENTUM
ARGON
ATOMS
BINDING ENERGY
CROSS SECTIONS
ENERGY
INTERACTIONS
KRYPTON
LENNARD-JONES POTENTIAL
LITHIUM
MEASURED VALUES
NEON
PARTIAL WAVES
PHYSICS
QUANTUM MECHANICS
RARE GASES
SCATTERING
VELOCITY
XENON