Doubly excited 2s2p 1,3P0 resonance states of helium in dense plasmas -: art. no. 010703

We have made an investigation on the 2s2p P-1,3(o) resonance states of helium embedded in dense plasma environments. A screened Coulomb potential obtained from the Debye model is used to represent the interaction between the charge particles. A correlated wave function consisting of a generalized exponential expansion has been used to represent the correlation effect. Resonance energies and widths for the doubly excited He embedded in plasmas with various Debye lengths are determined using the stabilization method by calculating the density of resonance states. The resonance energies and widths for various Debye parameters ranging from infinity to a small value for the lowest P-1,3(o) resonance states are reported.