Selection rules for electric multipole transition of triatomic molecule in scattering experiments
Tian Hong-Chun1, 2, Xu Long-Quan1, 2, Zhu Lin-Fan1, 2, †
       

(color online) The electron energy loss spectra of N2O measured at an incident electron energy of 2500 eV and the scattering angles of 0° and 6.5°, respectively. The corresponding squared momentum transfers at 0° and 6.5° are < 0.01 a . u . and 2.36 a.u., respectively.