Selection rules for electric multipole transition of triatomic molecule in scattering experiments

Tian Hong-Chun^{1, 2}, Xu Long-Quan^{1, 2}, Zhu Lin-Fan^{1, 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.