A Selection Rule for the Sigma(+) Sigma(-) Transitions in Electron-Molecule Collisions.

Abstract

The differential cross section for the electron-impact excitation of the b singlet Sigma(g)(+) state from the ground state of O2 is found to decrease rapidly as the scattering angle approaches zero. This behavior is the diatomic molecule analog of 'parity-unfavored' transitions in electronatom scattering. A group theoretic argument is given which explains the observations and provides a selection rule for the Sigma(+) to Sigma(-) transitions in diatomic molecules. (Author)

Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1971
Accession Number
AD0734532

Entities

People

  • David C. Cartwright
  • David L. Huestis
  • Sandor Trajmar
  • Walter Williams

Organizations

  • The Aerospace Corporation

Tags

DTIC Thesaurus Topics

  • Collisions
  • Diatomic Molecules
  • Differential Cross Sections
  • Electrons
  • Excitation
  • Ground State
  • Molecules
  • Observation
  • Scattering
  • Transitions

Fields of Study

  • Physics

Readers

  • Calculus or Mathematical Analysis
  • Molecular Photonics/Laser Physics

Technology Areas

  • Microelectronics