. "1050-2947" . "6"^^ . "20179" . "http://dx.doi.org/10.1103/PhysRevA.90.042708" . . . . . . "RIV/00216208:11320/14:10289675!RIV15-MSM-11320___" . . "Johnsen, Rainer" . . . . . . . "Pla\u0161il, Radek" . "molecules; dependence; gas; h-3+; afterglow; temperature; spectroscopy; plasma; d-3(+) ions; dissociative recombination"@en . . . "6"^^ . "US - Spojen\u00E9 st\u00E1ty americk\u00E9" . "Dohnal, Petr" . . . . "K\u00E1losi, \u00C1bel" . "Hejduk, Michal" . "11320" . "Stationary afterglow measurements in conjunction with near-infrared absorption spectroscopy show that the recombination of the H-3(+) ion with electrons in ionized gas mixtures of He, Ar, and H-2 at 300 K is strongly enhanced by neutral helium and by molecular hydrogen. The H-2-assisted ternary recombination coefficient K-H2 = (8.7 +/- 1.5) x 10(-23) cm(6)s(-1) substantially exceeds the value measured for H-3(+) in ambient helium (K-He similar to 10(-25) cm(6) s(-1)) or predicted by the generally accepted classical theory of Bates and Khare (similar to 10(-27) cm(6) s(-1)) for atomic ions. Because of the extremely large value of K-H2 in a hydrogen plasma the ternary recombination dominates over binary recombination already at pressures above 3 Pa. This can have consequences in plasma physics, astrophysics, recombination pumped lasers, plasma spectroscopy, plasmatic technologies, etc. The ternary processes provide a plausible explanation for the discrepancies between many earlier experimental results on H-3(+) recombination. The observation that the ternary process saturates at high He and H-2 densities suggests that recombination proceeds by a two-step process: formation of a long-lived complex [with a rate coefficient alpha(F) = (1.5 +/- 0.1) x 10(-7) cm(3) s(-1)] followed by collisional stabilization." . "H-2-assisted ternary recombination of H-3(+) with electrons at 300 K" . "Rubovi\u010D, Peter" . . . "RIV/00216208:11320/14:10289675" . . . . "H-2-assisted ternary recombination of H-3(+) with electrons at 300 K"@en . "Glos\u00EDk, Juraj" . . . "I, P(GAP209/12/0233), P(GP14-14649P), S" . . . "H-2-assisted ternary recombination of H-3(+) with electrons at 300 K" . "Physical Review A - Atomic Molecular and Optical Physics" . . "[E3828E6DB6C2]" . "10.1103/PhysRevA.90.042708" . . "7"^^ . "H-2-assisted ternary recombination of H-3(+) with electrons at 300 K"@en . "000343699100007" . "90" . "Stationary afterglow measurements in conjunction with near-infrared absorption spectroscopy show that the recombination of the H-3(+) ion with electrons in ionized gas mixtures of He, Ar, and H-2 at 300 K is strongly enhanced by neutral helium and by molecular hydrogen. The H-2-assisted ternary recombination coefficient K-H2 = (8.7 +/- 1.5) x 10(-23) cm(6)s(-1) substantially exceeds the value measured for H-3(+) in ambient helium (K-He similar to 10(-25) cm(6) s(-1)) or predicted by the generally accepted classical theory of Bates and Khare (similar to 10(-27) cm(6) s(-1)) for atomic ions. Because of the extremely large value of K-H2 in a hydrogen plasma the ternary recombination dominates over binary recombination already at pressures above 3 Pa. This can have consequences in plasma physics, astrophysics, recombination pumped lasers, plasma spectroscopy, plasmatic technologies, etc. The ternary processes provide a plausible explanation for the discrepancies between many earlier experimental results on H-3(+) recombination. The observation that the ternary process saturates at high He and H-2 densities suggests that recombination proceeds by a two-step process: formation of a long-lived complex [with a rate coefficient alpha(F) = (1.5 +/- 0.1) x 10(-7) cm(3) s(-1)] followed by collisional stabilization."@en . . "4" .