| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1682071 | Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms | 2010 | 5 Pages |
Abstract
We present a theoretical investigation on elastic positron-H2O collisions. More specifically, differential and integral cross sections in the 0-10Â eV energy range are reported. The calculations were performed using two theoretical approaches, namely, the Schwinger multichannel method and the method of continued fractions. The positron-molecule interaction dynamics is described by using a potential composed of static and correlation-polarization contributions. Comparison of our calculated results with the recent experimental of Zecca et al. [J. Phys. B 39 (2006) 1597] and theoretical results is encouraging.
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Authors
F. Arretche, W. Tenfen, K.T. Mazon, S.E. Michelin, M.A.P. Lima, M.-T. Lee, L.E. Machado, M.M. Fujimoto, O.A. Pessoa,