Electron-molecule scattering in the optical-potential approach: Surpassing second order

Journal Article · Mon Jun 20 04:00:00 EDT 1983 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.50.1979· OSTI ID:5960063

Berman, M; Walter, O; Cederbaum, L S

This work reports the first application of the many-body optical potential of Bell and Squires beyond second order for electron-molecule scattering. The optical potential is calculated in the two-particle-hole Tamm-Dancoff approximation and the scattering problem solved by use of the Schwinger variational principle. The method is applied to the well-known /sup 2/Pi/sub g/ shape resonance of N/sub 2/ near 2.3 eV, with highly satisfactory results. The importance of including target correlation and polarization in a balanced way is stressed.

• Research Organization: Theoretische Chemie, Institut fuer Physikalische Chemie, Universitat Heidelberg, D-6900 Heidelberg, West Germany
• OSTI ID: 5960063
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 50:25; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ALKALI METALS
ANALYTICAL SOLUTION
COLLISIONS
ELECTRON COLLISIONS
ELECTRON-MOLECULE COLLISIONS
ELEMENTS
MANY-BODY PROBLEM
METALS
MOLECULE COLLISIONS
OPTICAL MODELS
ORIENTATION
PERTURBATION THEORY
PROJECTILES
SODIUM
SPIN ORIENTATION
TARGETS
USES
VARIATIONAL METHODS