Generalized oscillator strengths for the 3s /sup 2/S. -->. 3p /sup 2/P transition in Mg II

Journal Article · Sun Dec 01 00:00:00 EST 1985 · Phys. Rev. A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.32.3778· OSTI ID:5013445

Msezane, A Z; Henry, R J.W.

Generalized oscillator strengths (GOS's) are calculated from accurate five-state close-coupling differential cross sections for the resonance transition in Mg II at electron impact energies 15, 50, 60, and 100 eV. Curves of the GOS versus momentum transfer squared, K/sup 2/, remain separate down to zero scattering angle, with the 50, 60, and 100 eV curves showing maxima close to K/sup 2/ = 0. We interpret the new phenomenon, maxima at small scattering angles, as a manifestation of the inadequacy of the Lassettre et al. formula to represent the GOS at small K/sup 2/ for intermediate energies. At 50 eV our GOS's compare well with those deduced from measurement.

• Research Organization: Department of Physics, Atlanta University, Atlanta, Georgia 30314
• OSTI ID: 5013445
• Journal Information: Phys. Rev. A; (United States), Vol. 32:6
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ELECTRON-ION COLLISIONS
EXCITATION
MAGNESIUM IONS
OSCILLATOR STRENGTHS
DIFFERENTIAL CROSS SECTIONS
EV RANGE 10-100
CHARGED PARTICLES
COLLISIONS
CROSS SECTIONS
ELECTRON COLLISIONS
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EV RANGE
ION COLLISIONS
IONS
640304* - Atomic
Molecular & Chemical Physics- Collision Phenomena