Multiple scattering of slow muons in an electron gas

Abstract: A comparative study of the angular dispersion of slow muons in an electron gas is performed using three dielectric models which represent the case of metals (Lindhard model for a free electron gas) and the cases of semiconductors and insulators (Levine and Louie model and Brandt and Reinhe...

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Publicado: 2017
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Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14346060_v71_n9_p_Archubi
http://hdl.handle.net/20.500.12110/paper_14346060_v71_n9_p_Archubi
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spelling paper:paper_14346060_v71_n9_p_Archubi2023-06-08T16:15:36Z Multiple scattering of slow muons in an electron gas Atomic and Molecular Collisions Abstract: A comparative study of the angular dispersion of slow muons in an electron gas is performed using three dielectric models which represent the case of metals (Lindhard model for a free electron gas) and the cases of semiconductors and insulators (Levine and Louie model and Brandt and Reinheimer model for systems with a band gap) and a non-linear model for both cases at very low velocities. The contribution of collective electronic excitations according to the dielectric model are found to be negligible. The results from the calculation using Lindhard expressions for the angular half width are coincident with the result of a multiple scattering model. In particular, the effects produced by the band gap of the material are analyzed in detail. Finally, as the recoil effect is negligible, there is an almost exact scaling, for a given velocity, between the proton and the muon results. Graphical abstract: [Figure not available: see fulltext.]. © 2017, EDP Sciences, SIF, Springer-Verlag GmbH Germany. 2017 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14346060_v71_n9_p_Archubi http://hdl.handle.net/20.500.12110/paper_14346060_v71_n9_p_Archubi
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Atomic and Molecular Collisions
spellingShingle Atomic and Molecular Collisions
Multiple scattering of slow muons in an electron gas
topic_facet Atomic and Molecular Collisions
description Abstract: A comparative study of the angular dispersion of slow muons in an electron gas is performed using three dielectric models which represent the case of metals (Lindhard model for a free electron gas) and the cases of semiconductors and insulators (Levine and Louie model and Brandt and Reinheimer model for systems with a band gap) and a non-linear model for both cases at very low velocities. The contribution of collective electronic excitations according to the dielectric model are found to be negligible. The results from the calculation using Lindhard expressions for the angular half width are coincident with the result of a multiple scattering model. In particular, the effects produced by the band gap of the material are analyzed in detail. Finally, as the recoil effect is negligible, there is an almost exact scaling, for a given velocity, between the proton and the muon results. Graphical abstract: [Figure not available: see fulltext.]. © 2017, EDP Sciences, SIF, Springer-Verlag GmbH Germany.
title Multiple scattering of slow muons in an electron gas
title_short Multiple scattering of slow muons in an electron gas
title_full Multiple scattering of slow muons in an electron gas
title_fullStr Multiple scattering of slow muons in an electron gas
title_full_unstemmed Multiple scattering of slow muons in an electron gas
title_sort multiple scattering of slow muons in an electron gas
publishDate 2017
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14346060_v71_n9_p_Archubi
http://hdl.handle.net/20.500.12110/paper_14346060_v71_n9_p_Archubi
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