A model potential that includes both correlation and polarization effects is proposed for electron-molecule collisions. It is based, as suggested by 0 Connell and Lane, on a hybridization of local electron-gas theory for short distances and the asymptotic form of the polarization potential. It ls cncfgy 1ndcpcndcnt and vcfy s11Tlplc to apply, depcnd1ng only on thc I11oleculaf chafgc dens1ty and polarizabihties. The potential has been calculated for several molecules (H2, N2, CO2, HF, HCl, and CO); the crossing point between the correlation and polarization potentials 1s remarkably constant"averaging 0.96 CV. Application in scattering calculations for Hz and N2 yields very encourag-1ng fcsults.
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