Constraining the KN coupled channel dynamics using femtoscopic correlations at the LHC
Autor(a) principal: | |
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Data de Publicação: | 2023 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/268504 |
Resumo: | The interaction of K−with protons is characterised by the presence of several coupled channels, systems like K0 n and π with a similar mass and the same quantum numbers as the K−p state. The strengths of these couplings to the K−p system are of crucial importance for the understanding of the nature of the (1405) resonance and of the attractive K−p strong interaction. In this article, we present measurements of the K−p correlation functions in relative momentum space obtained in pp collisions at √s = 13 TeV, in p–Pb collisions at √sNN = 5.02 TeV, and (semi)peripheral Pb–Pb collisions at √sNN = 5.02 TeV. The emitting source size, composed of a core radius anchored to the K+p correlation and of a resonance halo specific to each particle pair, varies between 1 and 2 fm in these collision systems. The strength and the effects of the K0 n and π inelastic channels on the measured K−p correlation function are investigated in the different colliding systems by comparing the data with state-of-the-art models of chiral potentials. A novel approach to determine the conversion weights ω, necessary to quantify the amount of produced inelastic channels in the correlation function, is presented. In this method, particle yields are estimated from thermal model predictions, and their kinematic distribution from blast-wave fits to measured data. The comparison of chiral potentials to the measured K−p interaction indicates that, while the π –K−p dynam ics is well reproduced by the model, the coupling to the K0 n channel in the model is currently underestimated. |
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Acharya, ShreyasiGay Ducati, Maria BeatrizPereira, Luis GustavoPezzi, Rafael PerettiALICE Collaboration2023-12-16T03:26:27Z20231434-6044http://hdl.handle.net/10183/268504001186848The interaction of K−with protons is characterised by the presence of several coupled channels, systems like K0 n and π with a similar mass and the same quantum numbers as the K−p state. The strengths of these couplings to the K−p system are of crucial importance for the understanding of the nature of the (1405) resonance and of the attractive K−p strong interaction. In this article, we present measurements of the K−p correlation functions in relative momentum space obtained in pp collisions at √s = 13 TeV, in p–Pb collisions at √sNN = 5.02 TeV, and (semi)peripheral Pb–Pb collisions at √sNN = 5.02 TeV. The emitting source size, composed of a core radius anchored to the K+p correlation and of a resonance halo specific to each particle pair, varies between 1 and 2 fm in these collision systems. The strength and the effects of the K0 n and π inelastic channels on the measured K−p correlation function are investigated in the different colliding systems by comparing the data with state-of-the-art models of chiral potentials. A novel approach to determine the conversion weights ω, necessary to quantify the amount of produced inelastic channels in the correlation function, is presented. In this method, particle yields are estimated from thermal model predictions, and their kinematic distribution from blast-wave fits to measured data. The comparison of chiral potentials to the measured K−p interaction indicates that, while the π –K−p dynam ics is well reproduced by the model, the coupling to the K0 n channel in the model is currently underestimated.application/pdfengThe European physical journal. C, Particles and fields. Berlin. Vol. 83, no. 4 (Apr. 2023), 340, 21 p.Aceleradores de partículasInteracoes de particulas elementaresConstraining the KN coupled channel dynamics using femtoscopic correlations at the LHCEstrangeiroinfo: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:UFRGSTEXT001186848.pdf.txt001186848.pdf.txtExtracted Texttext/plain108483http://www.lume.ufrgs.br/bitstream/10183/268504/2/001186848.pdf.txt2445d858f3e6ae666169dceb0b066817MD52ORIGINAL001186848.pdfTexto completo (inglês)application/pdf3479439http://www.lume.ufrgs.br/bitstream/10183/268504/1/001186848.pdf7d4511822dcdc771d813ffdfe31a95a6MD5110183/2685042023-12-17 04:22:50.944358oai:www.lume.ufrgs.br:10183/268504Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-12-17T06:22:50Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Constraining the KN coupled channel dynamics using femtoscopic correlations at the LHC |
title |
Constraining the KN coupled channel dynamics using femtoscopic correlations at the LHC |
spellingShingle |
Constraining the KN coupled channel dynamics using femtoscopic correlations at the LHC Acharya, Shreyasi Aceleradores de partículas Interacoes de particulas elementares |
title_short |
Constraining the KN coupled channel dynamics using femtoscopic correlations at the LHC |
title_full |
Constraining the KN coupled channel dynamics using femtoscopic correlations at the LHC |
title_fullStr |
Constraining the KN coupled channel dynamics using femtoscopic correlations at the LHC |
title_full_unstemmed |
Constraining the KN coupled channel dynamics using femtoscopic correlations at the LHC |
title_sort |
Constraining the KN coupled channel dynamics using femtoscopic correlations at the LHC |
author |
Acharya, Shreyasi |
author_facet |
Acharya, Shreyasi Gay Ducati, Maria Beatriz Pereira, Luis Gustavo Pezzi, Rafael Peretti ALICE Collaboration |
author_role |
author |
author2 |
Gay Ducati, Maria Beatriz Pereira, Luis Gustavo Pezzi, Rafael Peretti ALICE Collaboration |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Acharya, Shreyasi Gay Ducati, Maria Beatriz Pereira, Luis Gustavo Pezzi, Rafael Peretti ALICE Collaboration |
dc.subject.por.fl_str_mv |
Aceleradores de partículas Interacoes de particulas elementares |
topic |
Aceleradores de partículas Interacoes de particulas elementares |
description |
The interaction of K−with protons is characterised by the presence of several coupled channels, systems like K0 n and π with a similar mass and the same quantum numbers as the K−p state. The strengths of these couplings to the K−p system are of crucial importance for the understanding of the nature of the (1405) resonance and of the attractive K−p strong interaction. In this article, we present measurements of the K−p correlation functions in relative momentum space obtained in pp collisions at √s = 13 TeV, in p–Pb collisions at √sNN = 5.02 TeV, and (semi)peripheral Pb–Pb collisions at √sNN = 5.02 TeV. The emitting source size, composed of a core radius anchored to the K+p correlation and of a resonance halo specific to each particle pair, varies between 1 and 2 fm in these collision systems. The strength and the effects of the K0 n and π inelastic channels on the measured K−p correlation function are investigated in the different colliding systems by comparing the data with state-of-the-art models of chiral potentials. A novel approach to determine the conversion weights ω, necessary to quantify the amount of produced inelastic channels in the correlation function, is presented. In this method, particle yields are estimated from thermal model predictions, and their kinematic distribution from blast-wave fits to measured data. The comparison of chiral potentials to the measured K−p interaction indicates that, while the π –K−p dynam ics is well reproduced by the model, the coupling to the K0 n channel in the model is currently underestimated. |
publishDate |
2023 |
dc.date.accessioned.fl_str_mv |
2023-12-16T03:26:27Z |
dc.date.issued.fl_str_mv |
2023 |
dc.type.driver.fl_str_mv |
Estrangeiro info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
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publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10183/268504 |
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1434-6044 |
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001186848 |
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url |
http://hdl.handle.net/10183/268504 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
The European physical journal. C, Particles and fields. Berlin. Vol. 83, no. 4 (Apr. 2023), 340, 21 p. |
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info:eu-repo/semantics/openAccess |
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openAccess |
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