Radiative Lifetime of the B 2Σ+ State of CO+

Abstract

The lifetime of the B 2Σ+ state of CO+ was measured by noting the decay time of 11 band heads of the (0, 0), (0, 1), (1, 0), and (1, 2) electronic–vibrational transitions of the Baldet–Johnson system. The lifetime exhibited no pressure dependence and no variation of the lifetime was noted for different rotational or vibrational levels. The lifetimes of the υ′ = 0 and υ′ = 1 states are 51.0 ± 0.7 and 52.2 ± 1.8 nsec, respectively. These lifetimes are in agreement with other recent measurements.