Rho rho/sup -/ annihilation into pi/sup +/ pi/sup -/ pi/sup 0/ in a hadron-exchange model

Detalhes bibliográficos
Autor(a) principal: Betz, Michel Emile Marcel
Data de Publicação: 1997
Outros Autores: Veit, Eliane Angela, Mull, V., Holinde, K.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRGS
Texto Completo: http://hdl.handle.net/10183/140664
Resumo: Proton-antiproton annihilation into three pions is studied in a hadron-exchange model. An uncorrelated three-pion channel is added to the two-meson channels considered in previous calculations. Initial-state interactions are taken into account in a distorted-wave Born approximation, using the most complete version of the Jiilich NN model. The uncorrelated three-pion channel adds a 10% contribution to the pp pi/sup +/ pi/sup -/ pi/sup 0/ ative branching ratios for annihilation into three uncorrelated pions from states of equal orbital angular momentum, but different total angular momentum and spin, are also calculated. They compare semi-quantitatively with the corresponding quantities calculated from the phase-space components of phenomenological amplitudes fitted to experimental data for stopped antiprotons. It is concluded that hadron exchange provides a viable model for annihilation into three non-resonant pions.
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spelling Betz, Michel Emile MarcelVeit, Eliane AngelaMull, V.Holinde, K.2016-05-11T02:09:46Z19970370-2693http://hdl.handle.net/10183/140664000192465Proton-antiproton annihilation into three pions is studied in a hadron-exchange model. An uncorrelated three-pion channel is added to the two-meson channels considered in previous calculations. Initial-state interactions are taken into account in a distorted-wave Born approximation, using the most complete version of the Jiilich NN model. The uncorrelated three-pion channel adds a 10% contribution to the pp pi/sup +/ pi/sup -/ pi/sup 0/ ative branching ratios for annihilation into three uncorrelated pions from states of equal orbital angular momentum, but different total angular momentum and spin, are also calculated. They compare semi-quantitatively with the corresponding quantities calculated from the phase-space components of phenomenological amplitudes fitted to experimental data for stopped antiprotons. It is concluded that hadron exchange provides a viable model for annihilation into three non-resonant pions.application/pdfengPhysics letters. B. Amsterdam. Vol. 398, no. 1/2 (Apr. 1997), p. 12-17Física nuclearFisica subatomicaInteracoes fortes de particulas elementaresEspalhamento nucleon-nucleonStrong interactionsHadron-exchange modelsProton-antiproton annihilationRho rho/sup -/ annihilation into pi/sup +/ pi/sup -/ pi/sup 0/ in a hadron-exchange modelEstrangeiroinfo: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:UFRGSORIGINAL000192465.pdf000192465.pdfTexto completo (inglês)application/pdf500868http://www.lume.ufrgs.br/bitstream/10183/140664/1/000192465.pdf5feefd28477545c97f0736f0e92a6fefMD51TEXT000192465.pdf.txt000192465.pdf.txtExtracted Texttext/plain19131http://www.lume.ufrgs.br/bitstream/10183/140664/2/000192465.pdf.txtaa3ac59491fcd2347f84deb4bffc0a17MD52THUMBNAIL000192465.pdf.jpg000192465.pdf.jpgGenerated Thumbnailimage/jpeg1953http://www.lume.ufrgs.br/bitstream/10183/140664/3/000192465.pdf.jpgfd7a6363c0a59cd74fc28de990b8447fMD5310183/1406642023-09-21 03:38:19.9797oai:www.lume.ufrgs.br:10183/140664Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-09-21T06:38:19Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv Rho rho/sup -/ annihilation into pi/sup +/ pi/sup -/ pi/sup 0/ in a hadron-exchange model
title Rho rho/sup -/ annihilation into pi/sup +/ pi/sup -/ pi/sup 0/ in a hadron-exchange model
spellingShingle Rho rho/sup -/ annihilation into pi/sup +/ pi/sup -/ pi/sup 0/ in a hadron-exchange model
Betz, Michel Emile Marcel
Física nuclear
Fisica subatomica
Interacoes fortes de particulas elementares
Espalhamento nucleon-nucleon
Strong interactions
Hadron-exchange models
Proton-antiproton annihilation
title_short Rho rho/sup -/ annihilation into pi/sup +/ pi/sup -/ pi/sup 0/ in a hadron-exchange model
title_full Rho rho/sup -/ annihilation into pi/sup +/ pi/sup -/ pi/sup 0/ in a hadron-exchange model
title_fullStr Rho rho/sup -/ annihilation into pi/sup +/ pi/sup -/ pi/sup 0/ in a hadron-exchange model
title_full_unstemmed Rho rho/sup -/ annihilation into pi/sup +/ pi/sup -/ pi/sup 0/ in a hadron-exchange model
title_sort Rho rho/sup -/ annihilation into pi/sup +/ pi/sup -/ pi/sup 0/ in a hadron-exchange model
author Betz, Michel Emile Marcel
author_facet Betz, Michel Emile Marcel
Veit, Eliane Angela
Mull, V.
Holinde, K.
author_role author
author2 Veit, Eliane Angela
Mull, V.
Holinde, K.
author2_role author
author
author
dc.contributor.author.fl_str_mv Betz, Michel Emile Marcel
Veit, Eliane Angela
Mull, V.
Holinde, K.
dc.subject.por.fl_str_mv Física nuclear
Fisica subatomica
Interacoes fortes de particulas elementares
Espalhamento nucleon-nucleon
topic Física nuclear
Fisica subatomica
Interacoes fortes de particulas elementares
Espalhamento nucleon-nucleon
Strong interactions
Hadron-exchange models
Proton-antiproton annihilation
dc.subject.eng.fl_str_mv Strong interactions
Hadron-exchange models
Proton-antiproton annihilation
description Proton-antiproton annihilation into three pions is studied in a hadron-exchange model. An uncorrelated three-pion channel is added to the two-meson channels considered in previous calculations. Initial-state interactions are taken into account in a distorted-wave Born approximation, using the most complete version of the Jiilich NN model. The uncorrelated three-pion channel adds a 10% contribution to the pp pi/sup +/ pi/sup -/ pi/sup 0/ ative branching ratios for annihilation into three uncorrelated pions from states of equal orbital angular momentum, but different total angular momentum and spin, are also calculated. They compare semi-quantitatively with the corresponding quantities calculated from the phase-space components of phenomenological amplitudes fitted to experimental data for stopped antiprotons. It is concluded that hadron exchange provides a viable model for annihilation into three non-resonant pions.
publishDate 1997
dc.date.issued.fl_str_mv 1997
dc.date.accessioned.fl_str_mv 2016-05-11T02:09:46Z
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dc.identifier.uri.fl_str_mv http://hdl.handle.net/10183/140664
dc.identifier.issn.pt_BR.fl_str_mv 0370-2693
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dc.language.iso.fl_str_mv eng
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dc.relation.ispartof.pt_BR.fl_str_mv Physics letters. B. Amsterdam. Vol. 398, no. 1/2 (Apr. 1997), p. 12-17
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