Absolute measurements of the double differential electronic emission cross-sections of isolated pyrene molecule (C₁₆H₁₀) in interaction with keV protons

Electronic emission of an isolated pyrene molecule induced by 50 to 125 keV protons has been investigated. The corresponding absolute double differential cross-sections $\frac{{\partial }^2\sigma }{\partial \Omega \partial E}$ have been measured at an angle of 35° with respect to the incident proton beam axis. These measurements were compared to the simulations of emitted electrons' spectra using a semi-classical trajectory Monte-Carlo (SCTMC) approach. The simulated SCTMC cross-sections show reasonably good agreement with the measured ones. (paper)