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Manuscript Title: Program to calculate observable quantities from scattering amplitudes for inelastic electron-atom collisions.
Authors: K. Bartschat
Program title: OBSERVABLES
Catalogue identifier: ACFF_v1_0
Distribution format: gz
Journal reference: Comput. Phys. Commun. 30(1983)383
Programming language: Fortran.
Computer: VAX 11/780.
Operating system: VMS V3.0.
RAM: 21K words
Word size: 32
Keywords: Inelastic, Electron-atom scattering, Differential Cross-section, Spin polarisation, Scattering asymmetry, Alignment, Orientation, Spin-orbit interaction, Perturbation coefficient, Atomic physics, Scattering.
Classification: 2.4.

Nature of problem:
For inelastic electron-atom scattering; the cross-section, spin polarisation; scattering asymmetry, alignment and orientation parameters; angular distribution and polarisation of the emitted light in electron-photon coincidence experiments are calculated.

Restrictions:
Parts of the program (underlined twice in the flow diagram) may only be used for J=0, even -> J=1, odd (or L=0, even -> L=0, odd) transitions.

Running time:
The test run took 2.73 s execution time on the VAX 11/780.