Interference effects in negative ion formation

Conference · Thu Mar 01 04:00:00 EST 1984 · AIP Conf. Proc.; (United States)

OSTI ID:5796551

Alvarez, I; Morales, A; de Urquijo, J; Cisneros, C

This paper presents recent data on differential cross sections for H/sup -/ formation from collisions of H/sup +/ and H/sup 0/ with Ar in the energy range 1.0 to 4 keV. Experimental data exhibit a sharp maximum at 0/sup 0/ scattering angle as well as an oscillatory structure. The functional form and scaling properties strongly indicate that there is a glory maximum which occurs when the classical deflection function changes over from attractive to repulsive at some finite impact parameter. The oscillations are predicted by the Bessel function and may be said to arise from interference of the contributions from the two branches of the deflection function near to a glory.

• Research Organization: Instituto de Fisica, UNAM, Mexico, D.F. 01000
• OSTI ID: 5796551
• Report Number(s): CONF-831180-
• Conference Information: Journal Name: AIP Conf. Proc.; (United States) Journal Volume: 111:1
• Country of Publication: United States
• Language: English

Related Subjects

640301* -- Atomic
Molecular & Chemical Physics-- Beams & their Reactions
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ANIONS
ARGON
ATOM COLLISIONS
ATOM-ATOM COLLISIONS
BEAM PRODUCTION
CATIONS
CHARGED PARTICLES
COLLISIONS
CROSS SECTIONS
DIFFERENTIAL CROSS SECTIONS
ELEMENTS
ENERGY RANGE
FLUIDS
GASES
HYDROGEN
HYDROGEN IONS
HYDROGEN IONS 1 MINUS
HYDROGEN IONS 1 PLUS
ION COLLISIONS
ION-ATOM COLLISIONS
IONS
KEV RANGE
KEV RANGE 01-10
NONMETALS
RARE GASES
SCALING LAWS