Calculations of radiative lifetimes of Rydberg 6pnd J=2 states of PbI by multichannel quantum defect theory

摘要

Recently measured radiative lifetimes of the Rydberg series 6pnd 1/2[5/2](2)(0) and 1/2[3/2](2)(0) (n = 6 - 13) of PbI [Li et al., Phys. Rev. A 57, 3443 (1998)] have been compared with theoretical values obtained by means of multichannel quantum defect theory (MQDT) analyses. The MQDT parameters were obtained from experimentally determined energy levels. The channel admixture coefficients were calculated and used to evaluate the theoretical lifetimes. In addition, lifetime values for highly excited Rydberg states have been predicted.