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Roy, U, Ho YK.  2004.  P-wave resonances in positron–lithium scattering. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 221:36-40. Abstract2004_7.pdfWebsite

Three P-wave resonances in positron–lithium system below the Ps (n=2) threshold are calculated using the stabilization method. A model potential is used to represent the interaction between the core and the outermost active electron. Hylleraas-type wave functions are used to represent the correlation effects between the outer electron, the positron and the core. Our results are compared with those in the literature.

Roy, U, Ho YK.  2002.  S-wave resonances in positron-lithium scattering. Journal of Physics B: Atomic, Molecular and Optical Physics. 35:2149., Number 9: IOP Publishing Abstract2002_6.pdf

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