Resonant Auger-decay induced fragmentation of glycine molecule

[摘要] We investigated the fragmentation of glycine molecule induced by resonant Auger-decay following core-shell ionization at different atomic sites by synchrotron light. We show that the dissociation pathways as well as the charge state distributions are modified due to core-level photoionization followed by Auger-decay at the different target atomic sites. The initial states for the dissociation are associated with vacancies in valence or inner-valence shells that are not localized as in core shells. We also compare the molecular dissociation following resonant and non-resonant Auger decay processes to gain insight into the influence on bond cleavage by different ionization mechanisms.

[发布机构] Center for High Energy Density Science, University of Texas, Austin; TX; 78712, United States^1;University of Connecticut, Physics Department, Storrsa; CT; 06269, United States^2;LCLS, SLAC, Menlo Park; CA; 94025, United States^3;PULSE Institute, SLAC, Menlo Park; CA; 94025, United States^4

[关键词] Bond cleavages;Charge state distribution;Dissociation pathways;Glycine molecule;Ionization mechanisms;Molecular dissociation;Resonant Auger decay;Synchrotron light