RADIATIVE LIFETIME OF B 2SIGMA+ STATE OF CO+

The lifetime of the B 2∑+ 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 v'=0 and v'= 1 states are 51.0±0.7 and 52.2±1.8 nsec, respectively. These lifetimes are in agreement with other recent measurements.