Fock space multireference coupled cluster theory: Study of shape resonance

摘要

The complex absorbing potential along with correlated independent particle potential (CIP) Fock space multireference coupled cluster method is used for the study of resonances. We have studied shape resonance of e~-- F _2, e~-- N_2O and e~--CO molecules. In particular, we have studied e~-- F_2 scattering at different bond lengths to know whether F_2 - is bound at the equilibrium bond length of F_2.