Relating multichannel scattering and production amplitudes in a microscopic OZI-based model
Autor(a) principal: | |
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Data de Publicação: | 2008 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10316/4334 https://doi.org/10.1016/j.aop.2007.11.012 |
Resumo: | Relations between scattering and production amplitudes are studied in a microscopic multichannel model for meson-meson scattering, with coupling to confined quark-antiquark channels. Overlapping resonances and a proper threshold behaviour are treated exactly in the model. Under the spectator assumption, it is found that the two-particle production amplitude shares a common denominator with the elastic scattering amplitude, besides a numerator consisting of a linear combination of all elastic and some inelastic matrix elements. The coefficients in these linear combinations are shown to be generally complex. Finally, the standard operator expressions relating production and scattering amplitudes, viz. , are fulfilled, while in the small-coupling limit the usual isobar model is recovered. |
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Relating multichannel scattering and production amplitudes in a microscopic OZI-based modelRelating scattering and production amplitudesMultichannel meson-meson scatteringAnalytically solvable microscopic coupled-channel modelOZI-allowed processesGeneralised unitarity relationsUniversal S-matrix polesRelations between scattering and production amplitudes are studied in a microscopic multichannel model for meson-meson scattering, with coupling to confined quark-antiquark channels. Overlapping resonances and a proper threshold behaviour are treated exactly in the model. Under the spectator assumption, it is found that the two-particle production amplitude shares a common denominator with the elastic scattering amplitude, besides a numerator consisting of a linear combination of all elastic and some inelastic matrix elements. The coefficients in these linear combinations are shown to be generally complex. Finally, the standard operator expressions relating production and scattering amplitudes, viz. , are fulfilled, while in the small-coupling limit the usual isobar model is recovered.http://www.sciencedirect.com/science/article/B6WB1-4RC2NRS-3/1/cbece3189fbc68f36ed3ed1b586c6a0d2008info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleaplication/PDFhttp://hdl.handle.net/10316/4334http://hdl.handle.net/10316/4334https://doi.org/10.1016/j.aop.2007.11.012engAnnals of Physics. 323:5 (2008) 1215-1229van Beveren, EefRupp, Georgeinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2020-11-06T16:48:45Zoai:estudogeral.uc.pt:10316/4334Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:59:36.115682Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Relating multichannel scattering and production amplitudes in a microscopic OZI-based model |
title |
Relating multichannel scattering and production amplitudes in a microscopic OZI-based model |
spellingShingle |
Relating multichannel scattering and production amplitudes in a microscopic OZI-based model van Beveren, Eef Relating scattering and production amplitudes Multichannel meson-meson scattering Analytically solvable microscopic coupled-channel model OZI-allowed processes Generalised unitarity relations Universal S-matrix poles |
title_short |
Relating multichannel scattering and production amplitudes in a microscopic OZI-based model |
title_full |
Relating multichannel scattering and production amplitudes in a microscopic OZI-based model |
title_fullStr |
Relating multichannel scattering and production amplitudes in a microscopic OZI-based model |
title_full_unstemmed |
Relating multichannel scattering and production amplitudes in a microscopic OZI-based model |
title_sort |
Relating multichannel scattering and production amplitudes in a microscopic OZI-based model |
author |
van Beveren, Eef |
author_facet |
van Beveren, Eef Rupp, George |
author_role |
author |
author2 |
Rupp, George |
author2_role |
author |
dc.contributor.author.fl_str_mv |
van Beveren, Eef Rupp, George |
dc.subject.por.fl_str_mv |
Relating scattering and production amplitudes Multichannel meson-meson scattering Analytically solvable microscopic coupled-channel model OZI-allowed processes Generalised unitarity relations Universal S-matrix poles |
topic |
Relating scattering and production amplitudes Multichannel meson-meson scattering Analytically solvable microscopic coupled-channel model OZI-allowed processes Generalised unitarity relations Universal S-matrix poles |
description |
Relations between scattering and production amplitudes are studied in a microscopic multichannel model for meson-meson scattering, with coupling to confined quark-antiquark channels. Overlapping resonances and a proper threshold behaviour are treated exactly in the model. Under the spectator assumption, it is found that the two-particle production amplitude shares a common denominator with the elastic scattering amplitude, besides a numerator consisting of a linear combination of all elastic and some inelastic matrix elements. The coefficients in these linear combinations are shown to be generally complex. Finally, the standard operator expressions relating production and scattering amplitudes, viz. , are fulfilled, while in the small-coupling limit the usual isobar model is recovered. |
publishDate |
2008 |
dc.date.none.fl_str_mv |
2008 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10316/4334 http://hdl.handle.net/10316/4334 https://doi.org/10.1016/j.aop.2007.11.012 |
url |
http://hdl.handle.net/10316/4334 https://doi.org/10.1016/j.aop.2007.11.012 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Annals of Physics. 323:5 (2008) 1215-1229 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
aplication/PDF |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799133887741296640 |