Effective potential for e-atom scattering by DCS minimization at intermediate energies

✍ Scribed by Joseph M. Paikeday

• Publisher: John Wiley and Sons
• Year: 1997
• Tongue: English
• Weight: 193 KB
• Volume: 65
• Category: Article
• ISSN: 0020-7608
• DOI: 10.1002/(sici)1097-461x(1997)65:5<585::aid-qua23>3.0.co;2-0

✦ Synopsis

The differential scattering cross section DCS for electrons scattered elastically by neon is studied using a model potential. The short-range part of the effective potential is represented by the Chebyshev approximation and the long-range polarization potential is represented by an energy-dependent function. The computed differential cross section obtained using the approximate effective interaction potential for electrons scattered by neon atoms in their ground state in the 50᎐100 eV energy range is compared with available published results. In the present study, a nonrelativistic Hartree᎐Fock wave function of the target atom is used to compute the short-range static part of the interaction potential and the parameters contained in the energy-dependent function are determined by the minimization of the DCS with respect to the angle and the incident energy. The resulting DCS in the angular range 2Њ -⌰ -178Њ is found to be in good agreement with the available experimental and theoretical results in the intermediate energy range.