Multiple pole in the electron--hydrogen-atom scattering amplitude

Journal Article · Mon Jun 21 04:00:00 EDT 1982 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.48.1726· OSTI ID:5022845

Amusia, M Y; Kuchiev, M Y

It is demonstrated that the amplitude for electron--hydrogen-atom forward scattering has the third-order pole at the point E = -13.6 eV, E being the energy of the incident electron. The coefficients which characterize the pole are calculated exactly. The invalidity of the Born approximation is proved. The contribution of the pole singularity to the dispersion relation for the scattering amplitude is discussed.

• Research Organization: Ioffe Physical-Technical Institute of the Academy of Sciences, Leningrad, Union Soviet Socialist Republics
• OSTI ID: 5022845
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 48:25; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

640302 -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
AMPLITUDES
ATOM COLLISIONS
ATOMS
COLLISIONS
DISPERSION RELATIONS
ELECTRON COLLISIONS
ELECTRON-ATOM COLLISIONS
ELEMENTS
HYDROGEN
NONMETALS
SCATTERING AMPLITUDES