Abstract
Some doubly excited autoionising states of helium atoms converging on the N=3 He+ threshold are calculated by use of a method of complex coordinates. Hylleraas-type wavefunctions are used for L=0 and L=1 resonances with products of Slater-orbital type wavefunctions with expansion lengths up to 319 terms for L>or=2 resonances. States of parities (-1)L and (-1)L+1 and with angular momenta of L<or=4 are calculated. Resonance energies and autoionisation widths are reported.
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Schedule a callMore From: Journal of Physics B: Atomic and Molecular Physics
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