D. Strasser et al., Charge-transfer dissociation of vibrationally cold HeH+: Evidence for and lifetime of the a (3)Sigma(+) metastable state - art. no. 060705, PHYS REV A, 6106(6), 2000, pp. 0705
Using an alternative technique to trap keV ion beams, the kinetic-energy re
lease after dissociative charge transfer of vibrationally cold HeH+ was mea
sured. The results indicate that rapid radiative vibrational cooling takes
place during the trapping, thus allowing a direct observation of the a (3)S
igma(+) metastable state of HeH+, which has been a subject of controversy i
n previous dissociative recombination experiments.