title: Binary recombination of para- and ortho-H3+ with electrons at low temperatures.
abstract: Results of an experimental study of binary recombination of para- and ortho-H(3)(+) ions with electrons are presented. Near-infrared cavity-ring-down absorption spectroscopy was used to probe the lowest rotational states of H(3)(+) ions in the temperature range of 77-200 K in an H(3)(+)-dominated afterglow plasma. By changing the para/ortho abundance ratio, we were able to obtain the binary recombination rate coefficients for pure and para-H(3)(+) and ortho-H(3)(+). The results are in good agreement with previous theoretical predictions.
authors.affiliation: Faculty of Mathematics and Physics, Department of Surface and Plasma Science, Charles University, Prague, Czech Republic.
authors.forename: P
authors.initials: P
authors.lastname: Dohnal
authors.forename: M
authors.initials: M
authors.lastname: Hejduk
authors.forename: J
authors.initials: J
authors.lastname: Varju
authors.forename: P
authors.initials: P
authors.lastname: Rubovic
authors.forename: S
authors.initials: S
authors.lastname: Roucka
authors.forename: T
authors.initials: T
authors.lastname: Kotrík
authors.forename: R
authors.initials: R
authors.lastname: Plasil
authors.forename: R
authors.initials: R
authors.lastname: Johnsen
authors.forename: J
authors.initials: J
authors.lastname: Glosík