Doubly differential cross sections for the ionization of the molecule by electron impact

The partial doubly differential cross sections (PDDCS) for the ions , , , , (, ), , , and resulting from the dissociative ionization of the molecule by electron impact employing the ejected-electron and produced-ion coincidence technique have been measured. Measurements have been made for incident electron energies of 100 and 200 eV and for ejected electron energies of 30, 50, 65, 100 and 150 eV. The angular range for the detection of the ejected electron is between and . No trace of ions is found at any energy used. No previous data or theoretical predictions exist with which to make comparisons.