Detecting Positron-Atom Bound States through Resonant Annihilation and Scattering

29th International Conference on Photonic, Electronic, and Atomic Collisions

Flambaum, V.V.^1 ; Dzuba, V.A.^1 ; Gribakin, G.F.^1,2 ; Harabati, C.^1

School of Physics, University of New South Wales, Sydney, NSW

2052, Australia^1

School of Mathematics and Physics, Queen's University, Belfast

BT7 1NN, United Kingdom^2

关键词: Bound state;    Coupled-cluster singles;    Feshbach resonances;    Periodic table;    Third order;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/635/5/052027/pdf
DOI  :  10.1088/1742-6596/635/5/052027

来源: IOP

【 摘 要 】

A method is proposed for detecting positron-atom bound states by observing enhanced positron annihilation due to electronic Feshbach resonances. Relativistic coupled-cluster single-double approximation with third-order corrections is used to calculate positron binding energies and resonances for all atoms in Periodic Table.