Abstrakt
The radiative and ternary association reaction of H+ ions with H2 was studied using a 22-pole RF trap. An overall effective binary rate coefficient (keff) was measured over a broad range of hydrogen densities to determine contributions from the binary and ternary process.
The binary rate coefficient of the radiative association was measured for temperature 11-28 K at hydrogen density where ternary process can be neglected. The obtained binary rate coefficient of the radiative association at 11 K is kr(11 K) (1.7+-0.5)x10-16 cm3s -1.