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AbstractAbstract
[en] Positronium (Ps) formation by positron capturing from various levels of C60 within 10 degrees around the incoming positron direction is calculated. The C60 ground state structures are modeled by a simple but successful LDA (Local Density Approximation) methodology that used LB (Leeuwen-Baerends) exchange-correlation functional. The positron scattering process, on the other hand, uses a distorted wave framework. The diffraction driven resonances are found to be more pronounced in the forward direction, while the non-resonant background of the cross section does not loose much of its strength. This raises the possibility of experimental determination of the resonances in angle differential measurements. We further analyze our results by comparing the positron scattering versus positron-electron pairing components of the amplitude for better insights
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Available from doi: http://dx.doi.org/10.1140/epjd/e2019-100552-2; 49 refs.; This record replaces 51029109
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Journal Article
Journal
European Physical Journal. D, Atomic, Molecular and Optical Physics; ISSN 1434-6060;
; v. 73(no.12); p. 262.1-262.6

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