Open AccessINTERACTION POTENTIAL DRIVED BY INVERSION SCATTERING THEORY FOR EXTREMELY LOW-ENERGY e-He CO-LLISIONS
Author(s) -
Chen Xue-jun,
Wei Yan,
Xiao-Ping Cao
Publication year - 1994
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.43.1427
Subject(s) - wkb approximation , inversion (geology) , van der waals force , scattering , physics , elastic scattering , quantum , potential energy , quantum mechanics , molecule , paleontology , structural basin , biology
Based on the experimental data of differential cross sections of e-He elastic collisions at 2 eV, the e-He interaction potential has been drived theoretically by the inversion scattering method. Using the obtained potential, the differential cross sections of e-He elastic collissions at 2,5eV were calculated theoretically. The results show that: 1)The e-He interaction potential at extremely low-enery is real and local one and has the characters of strong Van der Waals potential. 2) The WKB inversion is fail for the present case, but the quantum inversion is still successful. 3) The quantum inversion potential can produecd good reaults in agreement with experimental data.