Measurement of the quasi free $np \to np\pi^+\pi^-$ and $np \to pp\pi^-\pi^0$ reactions at 1.25 GeV With HADES

Bibliographic Details
Main Author: HADES collaboration (105 authors)
Publication Date: 2014
Other Authors: Blanco, A., Bordalo, P., Fonte, P., Franco, C., Lopes, L., Mangiarotti, A., Silva, L.
Format: Article
Language: eng
Source: Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
Download full: http://dx.doi.org/10.1051/epjconf/20148102009
http://hdl.handle.net/10400.26/26742
Summary: We present the results of two-pion production in tagged quasi-free np collisions at a deutron incident beam energy of 1.25 GeV/c measured with the High-Acceptance Di-Electron Spectrometer (HADES) installed at GSI. The specific acceptance of HADES allowed for the first time to obtain high-precision data on pi^+pi^- and pi^-pi^0 production in np collisions in a region corresponding to large transverse momenta of the secondary particles. The obtained differential cross section data provide strong constraints on the production mechanisms and on the various baryon resonance contributions (DeltaDelta, N(1440), N(1520), Delta(1600)). The invariant mass and angular distributions from the np -> nppi^+pi ^-and np -> pppi^-pi^0 reactions are compared with different theoretical model predictions.
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spelling Measurement of the quasi free $np \to np\pi^+\pi^-$ and $np \to pp\pi^-\pi^0$ reactions at 1.25 GeV With HADESWe present the results of two-pion production in tagged quasi-free np collisions at a deutron incident beam energy of 1.25 GeV/c measured with the High-Acceptance Di-Electron Spectrometer (HADES) installed at GSI. The specific acceptance of HADES allowed for the first time to obtain high-precision data on pi^+pi^- and pi^-pi^0 production in np collisions in a region corresponding to large transverse momenta of the secondary particles. The obtained differential cross section data provide strong constraints on the production mechanisms and on the various baryon resonance contributions (DeltaDelta, N(1440), N(1520), Delta(1600)). The invariant mass and angular distributions from the np -> nppi^+pi ^-and np -> pppi^-pi^0 reactions are compared with different theoretical model predictions.Repositório ComumHADES collaboration (105 authors)Blanco, A.Bordalo, P.Fonte, P.Franco, C.Lopes, L.Mangiarotti, A.Silva, L.2019-02-04T05:35:34Z20142019-02-04T05:35:34Z2014-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://dx.doi.org/10.1051/epjconf/20148102009http://hdl.handle.net/10400.26/26742enginfo:eu-repo/semantics/openAccessreponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiainstacron:RCAAP2025-05-14T13:11:23Zoai:comum.rcaap.pt:10400.26/26742Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireinfo@rcaap.ptopendoar:https://opendoar.ac.uk/repository/71602025-05-29T07:20:19.777335Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiafalse
dc.title.none.fl_str_mv Measurement of the quasi free $np \to np\pi^+\pi^-$ and $np \to pp\pi^-\pi^0$ reactions at 1.25 GeV With HADES
title Measurement of the quasi free $np \to np\pi^+\pi^-$ and $np \to pp\pi^-\pi^0$ reactions at 1.25 GeV With HADES
spellingShingle Measurement of the quasi free $np \to np\pi^+\pi^-$ and $np \to pp\pi^-\pi^0$ reactions at 1.25 GeV With HADES
HADES collaboration (105 authors)
title_short Measurement of the quasi free $np \to np\pi^+\pi^-$ and $np \to pp\pi^-\pi^0$ reactions at 1.25 GeV With HADES
title_full Measurement of the quasi free $np \to np\pi^+\pi^-$ and $np \to pp\pi^-\pi^0$ reactions at 1.25 GeV With HADES
title_fullStr Measurement of the quasi free $np \to np\pi^+\pi^-$ and $np \to pp\pi^-\pi^0$ reactions at 1.25 GeV With HADES
title_full_unstemmed Measurement of the quasi free $np \to np\pi^+\pi^-$ and $np \to pp\pi^-\pi^0$ reactions at 1.25 GeV With HADES
title_sort Measurement of the quasi free $np \to np\pi^+\pi^-$ and $np \to pp\pi^-\pi^0$ reactions at 1.25 GeV With HADES
author HADES collaboration (105 authors)
author_facet HADES collaboration (105 authors)
Blanco, A.
Bordalo, P.
Fonte, P.
Franco, C.
Lopes, L.
Mangiarotti, A.
Silva, L.
author_role author
author2 Blanco, A.
Bordalo, P.
Fonte, P.
Franco, C.
Lopes, L.
Mangiarotti, A.
Silva, L.
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Repositório Comum
dc.contributor.author.fl_str_mv HADES collaboration (105 authors)
Blanco, A.
Bordalo, P.
Fonte, P.
Franco, C.
Lopes, L.
Mangiarotti, A.
Silva, L.
description We present the results of two-pion production in tagged quasi-free np collisions at a deutron incident beam energy of 1.25 GeV/c measured with the High-Acceptance Di-Electron Spectrometer (HADES) installed at GSI. The specific acceptance of HADES allowed for the first time to obtain high-precision data on pi^+pi^- and pi^-pi^0 production in np collisions in a region corresponding to large transverse momenta of the secondary particles. The obtained differential cross section data provide strong constraints on the production mechanisms and on the various baryon resonance contributions (DeltaDelta, N(1440), N(1520), Delta(1600)). The invariant mass and angular distributions from the np -> nppi^+pi ^-and np -> pppi^-pi^0 reactions are compared with different theoretical model predictions.
publishDate 2014
dc.date.none.fl_str_mv 2014
2014-01-01T00:00:00Z
2019-02-04T05:35:34Z
2019-02-04T05:35:34Z
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/10.1051/epjconf/20148102009
http://hdl.handle.net/10400.26/26742
url http://dx.doi.org/10.1051/epjconf/20148102009
http://hdl.handle.net/10400.26/26742
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
instacron:RCAAP
instname_str FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
instacron_str RCAAP
institution RCAAP
reponame_str Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
collection Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
repository.name.fl_str_mv Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
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