An efficient way of locating resonances in atomic three-body systems is presented. The homogeneous Faddeev-Merkuriev integral equations are solved by applying a separable expansion approximation on the potential terms in the Coulomb Sturmian basis. This approximation transforms the integral equations into a matrix equation. The complex energies are searched for as the complex zeros of the Fredholm determinant. The matrix elements of the three-body Coulomb Green's operator are calculated as the contour integral of two-body Coulomb Green's operators. Finally, the resonances of the e-Ps system of angular momentum L = 1 for natural and unnatural parity are presented.
|School:||California State University, Long Beach|
|School Location:||United States -- California|
|Source:||MAI 47/06M, Masters Abstracts International|
|Subjects:||Physics, Atoms & subatomic particles|
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