Formation of negative hydrogen ions in 7-keV OH+ + Ar and OH+ + acetone collisions: a general process for H-bearing molecular species

Autor:	Juhász, Zoltán, Sulik, Béla, Rangama, Jimmy, Bene, Erika, Sorgunlu-Frankland, Burcu, Frémont, François, Chesnel, Jean-Yves
Rok vydání:	2015
Předmět:	Physics - Atomic Physics Physics - Accelerator Physics Physics - Atomic and Molecular Clusters
Zdroj:	Physical Review A Volume: 87, Issue: 3, Article Number: 032718, Published: MAR 29 2013
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevA.87.032718
Popis:	We demonstrate that the formation of negative hydrogen ions (H-) occurs in a wide class of atomic and molecular collisions. In our experiments, H- emission from hydroxyl cations and acetone molecules was observed in keV-energy collisions. We show that hydride (H-) anions are formed via direct collisional fragmentation of molecules, followed by electron grabbing by fast hydrogen fragments. Such general mechanism in hydrogen-containing molecules may significantly influence reaction networks in planetary atmospheres and astrophysical media and new reaction pathways may have to be added in radiolysis studies.
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1503.03108 Zobrazit plný text záznamu View this record from Arxiv