Medium effects on spin observables of proton knockout reactions

Detalhes bibliográficos
Autor(a) principal: Krein, G. [UNESP]
Data de Publicação: 1995
Outros Autores: Maris, Th A.J., Rodrigues, B. B., Veit, E. A.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1103/PhysRevC.51.2646
http://hdl.handle.net/11449/223810
Resumo: Medium modifications of the properties of bound nucleons and mesons are investigated by means of intermediate energy quasifree proton knockout reactions with polarized incident protons, by comparison of quantities which are insensitive against wave distortions. The sensitivity of the spin observables of the quasifree proton-proton cross section to modifications of the nucleon and meson properties is studied using the Bonn one-boson exchange model of the nucleon-nucleon interaction. A method proposed to extract the pp analyzing power in medium from the (p→,2p) asymmetries indicates a reduction of this quantity compared to its free space value. This reduction is linked to modifications of masses and coupling constants of the nucleons and mesons in the nucleus. The implications of these modifications for another spin observable to be measured in the future are discussed. © 1995 The American Physical Society.
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spelling Medium effects on spin observables of proton knockout reactionsMedium modifications of the properties of bound nucleons and mesons are investigated by means of intermediate energy quasifree proton knockout reactions with polarized incident protons, by comparison of quantities which are insensitive against wave distortions. The sensitivity of the spin observables of the quasifree proton-proton cross section to modifications of the nucleon and meson properties is studied using the Bonn one-boson exchange model of the nucleon-nucleon interaction. A method proposed to extract the pp analyzing power in medium from the (p→,2p) asymmetries indicates a reduction of this quantity compared to its free space value. This reduction is linked to modifications of masses and coupling constants of the nucleons and mesons in the nucleus. The implications of these modifications for another spin observable to be measured in the future are discussed. © 1995 The American Physical Society.Instituto de Física Teórica, Universidade Estadual Paulista, Rua Pamplona, 145-01405-000 Sao PauloInstituto de Física, Universidade Federal do Rio Grande do Sul, Caixa Postal, 15051-91501-970 Porto AlegreInstituto de Física Teórica, Universidade Estadual Paulista, Rua Pamplona, 145-01405-000 Sao PauloUniversidade Estadual Paulista (UNESP)Instituto de Física, Universidade Federal do Rio Grande do SulKrein, G. [UNESP]Maris, Th A.J.Rodrigues, B. B.Veit, E. A.2022-04-28T19:53:15Z2022-04-28T19:53:15Z1995-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article2646-2655http://dx.doi.org/10.1103/PhysRevC.51.2646Physical Review C, v. 51, n. 5, p. 2646-2655, 1995.0556-2813http://hdl.handle.net/11449/22381010.1103/PhysRevC.51.26462-s2.0-0000183973Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPhysical Review Cinfo:eu-repo/semantics/openAccess2022-04-28T19:53:15Zoai:repositorio.unesp.br:11449/223810Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T15:18:47.027450Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Medium effects on spin observables of proton knockout reactions
title Medium effects on spin observables of proton knockout reactions
spellingShingle Medium effects on spin observables of proton knockout reactions
Krein, G. [UNESP]
title_short Medium effects on spin observables of proton knockout reactions
title_full Medium effects on spin observables of proton knockout reactions
title_fullStr Medium effects on spin observables of proton knockout reactions
title_full_unstemmed Medium effects on spin observables of proton knockout reactions
title_sort Medium effects on spin observables of proton knockout reactions
author Krein, G. [UNESP]
author_facet Krein, G. [UNESP]
Maris, Th A.J.
Rodrigues, B. B.
Veit, E. A.
author_role author
author2 Maris, Th A.J.
Rodrigues, B. B.
Veit, E. A.
author2_role author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (UNESP)
Instituto de Física, Universidade Federal do Rio Grande do Sul
dc.contributor.author.fl_str_mv Krein, G. [UNESP]
Maris, Th A.J.
Rodrigues, B. B.
Veit, E. A.
description Medium modifications of the properties of bound nucleons and mesons are investigated by means of intermediate energy quasifree proton knockout reactions with polarized incident protons, by comparison of quantities which are insensitive against wave distortions. The sensitivity of the spin observables of the quasifree proton-proton cross section to modifications of the nucleon and meson properties is studied using the Bonn one-boson exchange model of the nucleon-nucleon interaction. A method proposed to extract the pp analyzing power in medium from the (p→,2p) asymmetries indicates a reduction of this quantity compared to its free space value. This reduction is linked to modifications of masses and coupling constants of the nucleons and mesons in the nucleus. The implications of these modifications for another spin observable to be measured in the future are discussed. © 1995 The American Physical Society.
publishDate 1995
dc.date.none.fl_str_mv 1995-01-01
2022-04-28T19:53:15Z
2022-04-28T19:53:15Z
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://dx.doi.org/10.1103/PhysRevC.51.2646
Physical Review C, v. 51, n. 5, p. 2646-2655, 1995.
0556-2813
http://hdl.handle.net/11449/223810
10.1103/PhysRevC.51.2646
2-s2.0-0000183973
url http://dx.doi.org/10.1103/PhysRevC.51.2646
http://hdl.handle.net/11449/223810
identifier_str_mv Physical Review C, v. 51, n. 5, p. 2646-2655, 1995.
0556-2813
10.1103/PhysRevC.51.2646
2-s2.0-0000183973
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Physical Review C
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 2646-2655
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
_version_ 1808128496114860032

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