Author/Authors :
Mocellin، نويسنده , , Alexandra and Wiesner، نويسنده , , Karoline and Sorensen، نويسنده , , Stacey L. and Miron، نويسنده , , Catalin and Guen، نويسنده , , Karine Le and Céolin، نويسنده , , Denis and Simon، نويسنده , , Marc and Morin، نويسنده , , Paul and Machado، نويسنده , , André Bueno and Bjِrneholm، نويسنده , , Olle and de Brito، نويسنده , , Arnaldo Naves، نويسنده ,
Abstract :
Ozone is found to exhibit substantial site-selective fragmentation when its fragment ions are collected in coincidence with energy selected electrons. We find a preferential production of the O 2 + / O + ( O + / O + ) ion pair upon ionization of the terminal (central) oxygen 1s electron. Depending on the hole localization, Auger rates are different towards the various final states of the dication, which would produce the observed different fragmentation pattern. We also observe however an increase O 2 + / O + production for when the terminal core-hole state is vibrationally excited. This shows the role of the nuclear motion before the Auger decay in the observed site-specific.
