Download or read book Differential and Integral Cross Sections for the Electron Impact Excitation of the 2 Singlet Delta(g) and B Singlet Sigma(g)(+) States of O2 written by David C. Cartwright and published by . This book was released on 1971 with total page 45 pages. Available in PDF, EPUB and Kindle. Book excerpt: Electron impact energy-loss spectra of O2 have been analyzed for incident electron energies from 4 eV to 45 eV, scattering angles from 10 to 90 degrees, and for energy loss from 0 to 5 eV. The inelastic processes observed were the excitation of the a singlet Delta(g) and b singlet Sigma(g)(+) electronic states and vibrational excitation in some cases to v'' = 13. The excitation cross sections at each energy were made absolute by normalizing the sum of the integral cross sections (all inelastic, ionization and elastic) to measured electron-O2 total cross sections. The differential cross sections for the a singlet Delta(g) and b singlet Sigma(g)(+) states show nearly isotropic behavior as expected for optically spin-forbidden transitions. The elastic differential cross sections are strongly forward peaked at higher energies but become only slightly forward peaked at the lower energies. (Author).