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Type: Artigo de periódico
Title: Elastic cross sections and annihilation parameter for e(+)-H-2 scattering using the Schwinger multichannel method
Author: Lino, JLS
Germano, JSE
da Silva, EP
Lima, MAP
Abstract: We report detailed results for positron-H-2 collisions obtained with the Schwinger multichannel method. Our calculations include annihilation parameter, differential, integral, and momentum transfer cross sections for energies below the positronium formation threshold. The calculations were carried out in the static-plus-polarization approximation with symmetry-resolved cross sections. Energy (temperature) dependence and symmetry-resolved contributions for the annihilation parameter Z(eff) are also reported. Our ab initio integral cross sections are found to be in good agreement with the experimental data. [S1050-2947(98)04409-6].
Country: EUA
Editor: American Physical Soc
Citation: Physical Review A. American Physical Soc, v. 58, n. 5, n. 3502, n. 3506, 1998.
Rights: aberto
Identifier DOI: 10.1103/PhysRevA.58.3502
Date Issue: 1998
Appears in Collections:Unicamp - Artigos e Outros Documentos

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