Studies of electron collisions with polyatomic molecules using distributedhyphen;memory parallel computers

摘要

Elastic electron scattering cross sections from 5ndash;30 eV are reported for the molecules C2H4, C2H6, C3H8, Si2H6, and GeH4, obtained using an implementation of the Schwinger multichannel method for distributedhyphen;memory parallel computer architectures. These results, obtained within the statichyphen;exchange approximation, are in generally good agreement with the available experimental data. These calculations demonstrate the potential of highly parallel computation in the study of collisions between lowhyphen;energy electrons and polyatomic gases. The computational methodology discussed is also directly applicable to the calculation of elastic cross sections at higher levels of approximation (target polarization) and of electronic excitation cross sections.