A permutationhyphen;group direct configuration interaction procedure for second order molecular properties. Program implementation with application to theAthinsp;2Sgr;+larr;Xthinsp;2Pgr; twohyphen;photon transition of the OH radical

摘要

A permutation group direct configuration interaction program, using graphical techniques, has been extended to second order properties. Using this program, absolute and relative twohyphen;photon cross sections have been evaluated for the rotational lines of three vibronic bands 0ndash;0, 1ndash;0, 1ndash;1 of theAthinsp;2Sgr;+larr;Xthinsp;2Pgr; transition of OH. The computed absorption coefficients are compared with the available experimental data.