Eikonal exchange amplitudes

Journal Article · Mon Mar 31 23:00:00 EST 1980 · Phys. Rev., A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.21.1118· OSTI ID:5362624

Franco, V; Halpern, A M

We show that the existing and widely used results for an approximation to eikonal exchange amplitudes, which contain an indeterminate phase, are not valid. We derive a new analytic result, containing a well-defined phase, which can be used unambiguously with direct amplitudes to calculate full differential cross sections. The modulus of our result also differs from that of the previous formulations. Comparisons are made with the earlier e/sup -/-H approximate exchange calculations and with exact eikonal exchange calculations.

• Research Organization: Physics Department, Brooklyn College of the City University of New York, Brooklyn, New York 11210
• OSTI ID: 5362624
• Journal Information: Phys. Rev., A; (United States), Journal Name: Phys. Rev., A; (United States) Vol. 21:4; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
AMPLITUDES
ATOM COLLISIONS
COLLISIONS
CROSS SECTIONS
CRYOGENIC FLUIDS
DIFFERENTIAL CROSS SECTIONS
EIKONAL APPROXIMATION
ELECTRON COLLISIONS
ELECTRON-ATOM COLLISIONS
ELEMENTS
FLUIDS
HYDROGEN
NONMETALS
SCATTERING AMPLITUDES