Resonant Auger-decay induced fragmentation of glycine molecule

29th International Conference on Photonic, Electronic, and Atomic Collisions

Fang, L.^1 ; Xiong, H.^2 ; Osipov, T.^3 ; Petrovic, V.S.^4 ; Berrah, N.^2

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;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/635/11/112050/pdf
DOI  :  10.1088/1742-6596/635/11/112050

来源: IOP

【 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.