g Factors and lifetimes in the B state of molecular iodine

Abstract

We have measured the g factors and lifetimes of the vibration-rotation levels of molecular iodine excited by the various lines of Ar+ and Kr+ lasers. To obtain these results we have used the Hanle effect and the method of resonances in a modulated light beam. The experimental values of gJ vary very much with v' the vibrational quantum number of the B state. A theoretical relationship between g J and CI, the magnetic hyperfine constant, has been proved to be valid to a good approximation