Merlitz, H; Gopakumar, G; Chaudhuri, R. K; Das, B. P; Mahapatra, U. S; Mukherjee, D
(The American Physical Society, 2001-02)
Ionization potentials (IP's) are evaluated for various excited states of Tl using the relativistic coupled cluster (CCCD) theory in the even-parity pair channel approximation (CCSD-EPC). An average accuracy below half a ...