Lifetime and predissociation yield of ~(14)N_2 B ~1II_u/(v=1)

摘要

The lifetime of the b ~1II_u((v=1) state in ~(14)N)2 has been determined experimentally using a laser-based pump-probe scheme and an exceptionally long lifetime of 2.61 ns was found.Semiempirical close-coupling calculations of the radiative lifetime,which include Rydberg-valence interactions in the singlet manifold,are consistent with this large value,giving a value of 3.61 ns and suggesting a predissociation yield of approx 28% for this level of the b state.