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Type: Artigo de periódico
Title: Low energy scattering of positrons by H2O
Author: Arretche, F
Tenfen, W
Mazon, KT
Michelin, SE
Lima, MAP
Lee, MT
Machado, LE
Fujimoto, MM
Pessoa, OA
Abstract: We present a theoretical investigation on elastic positron-H2O collisions. More specifically, differential and integral cross sections in the 0-10 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. (C) 2009 Elsevier B.V. All rights reserved.
Subject: Positron scattering
Method of continued fractions
Schwinger multichannel method
Elastic cross sections
Country: Holanda
Editor: Elsevier Science Bv
Rights: fechado
Identifier DOI: 10.1016/j.nimb.2009.10.187
Date Issue: 2010
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

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