The hydride ion H- is widely understood to play a major role in many processes important for physics, cosmology, astrophysics and chemistry. Here we report that H- ions can be formed by collision-induced fragmentation of molecules containing hydrogen and heavier nuclei. We observed H- emission from OH+ + Ar and OH+ + acetone collisions at the energy of 7 keV. Our data reveal a process of electron-grabbing by fast hydrogen fragments emitted in hard collisions with large momentum transfer between atomic cores.
|Journal||Journal of Physics: Conference Series|
|Issue number||SECTION 10|
|Publication status||Published - 2014|
|Event||28th International Conference on Photonic, Electronic and Atomic Collisions, ICPEAC 2013 - Lanzhou, China|
Duration: Jul 24 2013 → Jul 30 2013
ASJC Scopus subject areas
- Physics and Astronomy(all)