Long-lived, highly excited neutral hydrogen atom production following oxygen 1s photoexcitation of gas-phase water molecules

Harries, J.; 下條 竜夫*; 本間 健二*; 國分 美希*; Sullivan, J. P.*; Lebech, M.*; 東 善郎*

Journal of Physics B; Atomic, Molecular and Optical Physics, 44(9), p.095101_1 - 095101_7, 2011/05

https://doi.org/10.1088/0953-4075/44/9/095101

We have studied the production of long-lived, highly-excited, neutral hydrogen atom fragments following oxygen 1s inner-shell excitation/ionization of gas-phase water molecules using synchrotron radiation. Striking differences to fragment ion and low- neutral H yields are observed close to threshold. To investigate the decay pathways involved the neutral fragments were also detected in coincidence with H, O, O, and OH fragments.