Optically-forbidden transitions to the Xe autoionizing levels evidenced by electron impact

Excitation to symmetry forbidden vibroni

Excitation to symmetry forbidden vibronic levels in the 1B2u state by controlled electron impact on benzene

✍ Hirofumi Kawazumi; Takayuki Oomori; Naoki Yamani; Teiichiro Ogawa 📂 Article 📅 1984 🏛 Elsevier Science 🌐 English ⚖ 247 KB

The t Bzu-t At, fluorescence emission of benzene acited by controlled electron impact was measured in :he !4-100 eV region. The opti-ally forbidden 6 ' levels xvere prefcrentiaUy acited. This indicates rhnr 3 non-dlpolr: rranution rakes place under low-energy electron-molecule collisions.