Manifestly covariant approach for the one-soliton sector

Detalhes bibliográficos
Autor(a) principal: Girotti, Horacio Oscar
Data de Publicação: 1978
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRGS
Texto Completo: http://hdl.handle.net/10183/103702
Resumo: The one-loop contributions to the meson propagator and to the meson-soliton scattering amplitude in the one-soliton sector are analyzed using ordinary Feynman rules. It is found that, at the level of the propagator, the most severe infrared divergences cancel out while others remain. The structure of the remaining divergences is studied. We conclude that, among other things, the coefficient function of the leading divergence only depends upon the classical soliton solution. An extended Lehmann-Symanzik- Ziminerman reduction technique, to work in the one-soliton sector, is proposed. Then, it is shown thht, under certain mathematical assumptions, the above-mentioned S-matrix element turns out to be free of zeromode singularities.
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spelling Girotti, Horacio Oscar2014-09-24T02:12:05Z19780556-2821http://hdl.handle.net/10183/103702000145365The one-loop contributions to the meson propagator and to the meson-soliton scattering amplitude in the one-soliton sector are analyzed using ordinary Feynman rules. It is found that, at the level of the propagator, the most severe infrared divergences cancel out while others remain. The structure of the remaining divergences is studied. We conclude that, among other things, the coefficient function of the leading divergence only depends upon the classical soliton solution. An extended Lehmann-Symanzik- Ziminerman reduction technique, to work in the one-soliton sector, is proposed. Then, it is shown thht, under certain mathematical assumptions, the above-mentioned S-matrix element turns out to be free of zeromode singularities.application/pdfengPhysical Review. D, Particles and fields. Woodbury. Vol. 17, no. 12 (June 1978), p. 3273-3279Fisica de particulas elementares e camposFísica teóricaParticulas elementaresSolitonsManifestly covariant approach for the one-soliton sectorEstrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSORIGINAL000145365.pdf000145365.pdfTexto completo (inglês)application/pdf476052http://www.lume.ufrgs.br/bitstream/10183/103702/1/000145365.pdffcfb5a2f9695fba1b69f4ae1970d1193MD51TEXT000145365.pdf.txt000145365.pdf.txtExtracted Texttext/plain22870http://www.lume.ufrgs.br/bitstream/10183/103702/2/000145365.pdf.txtc28e2368ac801552cb7fe4be49c875eeMD52THUMBNAIL000145365.pdf.jpg000145365.pdf.jpgGenerated Thumbnailimage/jpeg1774http://www.lume.ufrgs.br/bitstream/10183/103702/3/000145365.pdf.jpge5d4c604cf516d9d79ab313bc673f41cMD5310183/1037022023-08-02 03:33:33.437587oai:www.lume.ufrgs.br:10183/103702Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-08-02T06:33:33Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv Manifestly covariant approach for the one-soliton sector
title Manifestly covariant approach for the one-soliton sector
spellingShingle Manifestly covariant approach for the one-soliton sector
Girotti, Horacio Oscar
Fisica de particulas elementares e campos
Física teórica
Particulas elementares
Solitons
title_short Manifestly covariant approach for the one-soliton sector
title_full Manifestly covariant approach for the one-soliton sector
title_fullStr Manifestly covariant approach for the one-soliton sector
title_full_unstemmed Manifestly covariant approach for the one-soliton sector
title_sort Manifestly covariant approach for the one-soliton sector
author Girotti, Horacio Oscar
author_facet Girotti, Horacio Oscar
author_role author
dc.contributor.author.fl_str_mv Girotti, Horacio Oscar
dc.subject.por.fl_str_mv Fisica de particulas elementares e campos
Física teórica
Particulas elementares
Solitons
topic Fisica de particulas elementares e campos
Física teórica
Particulas elementares
Solitons
description The one-loop contributions to the meson propagator and to the meson-soliton scattering amplitude in the one-soliton sector are analyzed using ordinary Feynman rules. It is found that, at the level of the propagator, the most severe infrared divergences cancel out while others remain. The structure of the remaining divergences is studied. We conclude that, among other things, the coefficient function of the leading divergence only depends upon the classical soliton solution. An extended Lehmann-Symanzik- Ziminerman reduction technique, to work in the one-soliton sector, is proposed. Then, it is shown thht, under certain mathematical assumptions, the above-mentioned S-matrix element turns out to be free of zeromode singularities.
publishDate 1978
dc.date.issued.fl_str_mv 1978
dc.date.accessioned.fl_str_mv 2014-09-24T02:12:05Z
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dc.identifier.uri.fl_str_mv http://hdl.handle.net/10183/103702
dc.identifier.issn.pt_BR.fl_str_mv 0556-2821
dc.identifier.nrb.pt_BR.fl_str_mv 000145365
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dc.language.iso.fl_str_mv eng
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dc.relation.ispartof.pt_BR.fl_str_mv Physical Review. D, Particles and fields. Woodbury. Vol. 17, no. 12 (June 1978), p. 3273-3279
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