Glauber amplitude for scattering of electrons by hydrogen atoms: 1s. -->. 2s,2p excitations

Journal Article · Sun May 15 00:00:00 EDT 1988 · Phys. Rev. A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.37.3738· OSTI ID:5161249

Padhy, B; Rai, D K

The method proposed by Yates (Chem. Phys. Lett. 25, 480 (1974)) has been extended to the case of 1s..-->..2s,2p excitation of a hydrogen atom by electron impact. An alternative analytical procedure used by Berestetskii, Lifshitz, and Pitaevskii (Quantum Electrodynamics (Pergamon, Oxford, 1982), p. 539) has, however, been adopted for the evaluation of the third term of the Glauber series. In the process Yates's expression for the third Glauber term for electron--hydrogen-atom elastic scattering has been reproduced. The differential scattering cross section for the excitation process has been calculated as suggested by Yates. This cross section is found to be in reasonable agreement in the low-angle region with the exact Glauber results reported by Tai et al. (Phys. Rev. A 1, 1819 (1970)) and by Gien (Phys. Rev. A 20, 1457 (1979)).

• Research Organization: Department of Physics, Banaras Hindu University, Varanasi 221chemically bond005, India
• OSTI ID: 5161249
• Journal Information: Phys. Rev. A; (United States), Vol. 37:10
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
HYDROGEN
ELECTRON-ATOM COLLISIONS
EXCITATION
INELASTIC SCATTERING
SCATTERING AMPLITUDES
TOTAL CROSS SECTIONS
AMPLITUDES
ATOM COLLISIONS
COLLISIONS
CROSS SECTIONS
ELECTRON COLLISIONS
ELEMENTS
ENERGY-LEVEL TRANSITIONS
NONMETALS
SCATTERING
640304* - Atomic
Molecular & Chemical Physics- Collision Phenomena