Elastic scattering of electrons by water molecules at intermediate and high energies

Journal Article · Fri Apr 15 04:00:00 EDT 1988 · Phys. Rev. A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.37.2893· OSTI ID:5235788

Jain, A K; Tripathi, A N; Jain, A

Elastic differential, integral, and momentum-transfer cross sections are reported for the scattering of electrons by water molecules in the energy range of 100--1000 eV. A parameter-free model optical potential which is the sum of three spherical terms, namely the static, exchange, and polarization forces, is constructed from near--Hartree-Fock one-center-expansion water wave functions. The total optical potential is then treated exactly in a partial-wave analysis using the variable-phase approach to yield the scattering phase shifts. We employ several versions of parameter-free polarization and exchange potentials. We find that the present calculated differential cross sections reproduce all the important features (such as forward peaking, dip at middle angles, and enhanced backward scattering) observed in recent experiments. Quantitatively, the present results are in very good agreement with experiment and better than earlier calculations.

• Research Organization: Department of Physics, University of Roorkee, Roorkee 247)vertreverse arrowbar)667, India
• OSTI ID: 5235788
• Journal Information: Phys. Rev. A; (United States), Journal Name: Phys. Rev. A; (United States) Vol. 37:8; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
COLLISIONS
CROSS SECTIONS
DIFFERENTIAL CROSS SECTIONS
ELASTIC SCATTERING
ELECTRON COLLISIONS
ELECTRON-MOLECULE COLLISIONS
ENERGY RANGE
EV RANGE
EV RANGE 100-1000
HYDROGEN COMPOUNDS
INTEGRAL CROSS SECTIONS
MOLECULE COLLISIONS
MOMENTUM TRANSFER
OPTICAL MODELS
OXYGEN COMPOUNDS
PARTIAL WAVES
POTENTIALS
SCATTERING
WATER