Strongly resolved diffraction resonances in positronium formation from C60 in forward direction★
Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg, 67000 Strasbourg, France
2 Department of Natural Sciences, D.L. Hubbard Center for Innovation, Northwest Missouri State University Maryville, Missouri 64468, USA
Received in final form: 21 November 2019
Published online: 19 December 2019
Positronium formation by capturing from various levels of C60 within 10 degrees around the incoming positron direction is calculated. Results indicate dominant strength of the Ps signal and higher res-olution of the diffraction resonances, predicted earlier [P.A. Hervieux, A.R. Chakraborty, H.S. Chakraborty, Phys. Rev. A 95, 020701(R) (2017)], in the forward direction. This raises the possibility of experimental deter-mination 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.
© EDP Sciences / Società Italiana di Fisica / Springer-Verlag GmbH Germany, part of Springer Nature, 2019