Radiative association of H+ H2 - experimental study

Abstract

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)×10−16 cm3s−1.