Measurement of non-prompt D0-meson elliptic flow in Pb–Pb collisions at √sNN = 5.02 TeV

Detalhes bibliográficos
Autor(a) principal: Acharya, Shreyasi
Data de Publicação: 2023
Outros Autores: Gay Ducati, Maria Beatriz, ALICE Collaboration
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRGS
Texto Completo: http://hdl.handle.net/10183/278517
Resumo: t The elliptic flow (v2) of D0 mesons from beautyhadron decays (non-prompt D0) was measured in midcentral (30–50%) Pb–Pb collisions at a centre-of-mass energy per nucleon pair √sNN = 5.02 TeV with the ALICE detector at the LHC. The D0 mesons were reconstructed at midrapidity (|y| < 0.8) from their hadronic decay D0 → K−π+, in the transverse momentum interval 2 < pT < 12 GeV/c. The result indicates a positive v2 for non-prompt D0 mesons with a significance of 2.7σ. The non-prompt D0-meson v2 is lower than that of prompt non-strange D mesons with 3.2σ significance in 2 < pT < 8 GeV/c, and compatible with the v2 of beauty-decay electrons. Theoretical calculations of beautyquark transport in a hydrodynamically expanding medium describe the measurement within uncertainties.
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spelling Acharya, ShreyasiGay Ducati, Maria BeatrizALICE Collaboration2024-09-06T06:39:29Z20231434-6044http://hdl.handle.net/10183/278517001198397t The elliptic flow (v2) of D0 mesons from beautyhadron decays (non-prompt D0) was measured in midcentral (30–50%) Pb–Pb collisions at a centre-of-mass energy per nucleon pair √sNN = 5.02 TeV with the ALICE detector at the LHC. The D0 mesons were reconstructed at midrapidity (|y| < 0.8) from their hadronic decay D0 → K−π+, in the transverse momentum interval 2 < pT < 12 GeV/c. The result indicates a positive v2 for non-prompt D0 mesons with a significance of 2.7σ. The non-prompt D0-meson v2 is lower than that of prompt non-strange D mesons with 3.2σ significance in 2 < pT < 8 GeV/c, and compatible with the v2 of beauty-decay electrons. Theoretical calculations of beautyquark transport in a hydrodynamically expanding medium describe the measurement within uncertainties.application/pdfengThe European physical journal. C, Particles and fields. Berlin. Vol. 83, no. 12 (Dec. 2023), 1123, 17 p.Aceleradores de partículasColisao de ions pesadosMésons DMeasurement of non-prompt D0-meson elliptic flow in Pb–Pb collisions at √sNN = 5.02 TeVEstrangeiroinfo: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:UFRGSTEXT001198397.pdf.txt001198397.pdf.txtExtracted Texttext/plain86955http://www.lume.ufrgs.br/bitstream/10183/278517/2/001198397.pdf.txt4b3f3ff4fe4e7c2b2f2b1071f0931fd7MD52ORIGINAL001198397.pdfTexto completo (inglês)application/pdf2024957http://www.lume.ufrgs.br/bitstream/10183/278517/1/001198397.pdff5e4b4dab3182a4ff7cc14ca664cbd10MD5110183/2785172024-09-07 06:19:19.445953oai:www.lume.ufrgs.br:10183/278517Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2024-09-07T09:19:19Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv Measurement of non-prompt D0-meson elliptic flow in Pb–Pb collisions at √sNN = 5.02 TeV
title Measurement of non-prompt D0-meson elliptic flow in Pb–Pb collisions at √sNN = 5.02 TeV
spellingShingle Measurement of non-prompt D0-meson elliptic flow in Pb–Pb collisions at √sNN = 5.02 TeV
Acharya, Shreyasi
Aceleradores de partículas
Colisao de ions pesados
Mésons D
title_short Measurement of non-prompt D0-meson elliptic flow in Pb–Pb collisions at √sNN = 5.02 TeV
title_full Measurement of non-prompt D0-meson elliptic flow in Pb–Pb collisions at √sNN = 5.02 TeV
title_fullStr Measurement of non-prompt D0-meson elliptic flow in Pb–Pb collisions at √sNN = 5.02 TeV
title_full_unstemmed Measurement of non-prompt D0-meson elliptic flow in Pb–Pb collisions at √sNN = 5.02 TeV
title_sort Measurement of non-prompt D0-meson elliptic flow in Pb–Pb collisions at √sNN = 5.02 TeV
author Acharya, Shreyasi
author_facet Acharya, Shreyasi
Gay Ducati, Maria Beatriz
ALICE Collaboration
author_role author
author2 Gay Ducati, Maria Beatriz
ALICE Collaboration
author2_role author
author
dc.contributor.author.fl_str_mv Acharya, Shreyasi
Gay Ducati, Maria Beatriz
ALICE Collaboration
dc.subject.por.fl_str_mv Aceleradores de partículas
Colisao de ions pesados
Mésons D
topic Aceleradores de partículas
Colisao de ions pesados
Mésons D
description t The elliptic flow (v2) of D0 mesons from beautyhadron decays (non-prompt D0) was measured in midcentral (30–50%) Pb–Pb collisions at a centre-of-mass energy per nucleon pair √sNN = 5.02 TeV with the ALICE detector at the LHC. The D0 mesons were reconstructed at midrapidity (|y| < 0.8) from their hadronic decay D0 → K−π+, in the transverse momentum interval 2 < pT < 12 GeV/c. The result indicates a positive v2 for non-prompt D0 mesons with a significance of 2.7σ. The non-prompt D0-meson v2 is lower than that of prompt non-strange D mesons with 3.2σ significance in 2 < pT < 8 GeV/c, and compatible with the v2 of beauty-decay electrons. Theoretical calculations of beautyquark transport in a hydrodynamically expanding medium describe the measurement within uncertainties.
publishDate 2023
dc.date.issued.fl_str_mv 2023
dc.date.accessioned.fl_str_mv 2024-09-06T06:39:29Z
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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dc.identifier.uri.fl_str_mv http://hdl.handle.net/10183/278517
dc.identifier.issn.pt_BR.fl_str_mv 1434-6044
dc.identifier.nrb.pt_BR.fl_str_mv 001198397
identifier_str_mv 1434-6044
001198397
url http://hdl.handle.net/10183/278517
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. 12 (Dec. 2023), 1123, 17 p.
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
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institution UFRGS
reponame_str Repositório Institucional da UFRGS
collection Repositório Institucional da UFRGS
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