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Abstract
Magnetic-field effects on the Feshbach resonances below the H (N = 2) threshold and the shape resonance of lying above the H (N = 3) threshold are investigated theoretically using a method of complex-coordinate rotation. Products of Slater-type orbitals (STOs) are used to represent the two-electron wavefunctions, with being employed for individual electrons. Block matrices with up to (K-states) are used. Convergence behaviour for the resonance parameters (resonance energy and width) is examined by using different values of . When the external magnetic field is turned on, we examine the field effects on the resonance energies and the autoionization widths. A physical interpretation of our results is given.
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Schedule a callMore From: Journal of Physics B: Atomic, Molecular and Optical Physics
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