Measurement of D-meson production at mid-rapidity in pp collisions at √s=7 TeV

Detalhes bibliográficos
Autor(a) principal: Acharya, Shreyasi
Data de Publicação: 2017
Outros Autores: Gay Ducati, Maria Beatriz, Pereira, Luis Gustavo, Pezzi, Rafael Peretti, ALICE Collaboration
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRGS
Texto Completo: http://hdl.handle.net/10183/181535
Resumo: The production cross sections for prompt charmed mesons D0, D+, D∗+ and D+ s were measured at mid-rapidity in proton–proton collisions at a centre-of-mass energy √ s = 7 TeV with the ALICE detector at the Large Hadron Collider (LHC). D mesons were reconstructed from their decays D0 → K− π +, D+ → K− π + π +, D∗+ → D0π +, D+ s → φπ + → K−K+ π +, and their charge conjugates. With respect to previous measurements in the same rapidity region, the coverage in transverse momentum (pT) is extended and the uncertainties are reduced by a factor of about two. The accuracy on the estimated total cc production cross section is likewise improved. The measured pTdifferential cross sections are compared with the results of three perturbative QCD calculations.
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spelling Acharya, ShreyasiGay Ducati, Maria BeatrizPereira, Luis GustavoPezzi, Rafael PerettiALICE Collaboration2018-08-31T02:29:10Z20171434-6044http://hdl.handle.net/10183/181535001048680The production cross sections for prompt charmed mesons D0, D+, D∗+ and D+ s were measured at mid-rapidity in proton–proton collisions at a centre-of-mass energy √ s = 7 TeV with the ALICE detector at the Large Hadron Collider (LHC). D mesons were reconstructed from their decays D0 → K− π +, D+ → K− π + π +, D∗+ → D0π +, D+ s → φπ + → K−K+ π +, and their charge conjugates. With respect to previous measurements in the same rapidity region, the coverage in transverse momentum (pT) is extended and the uncertainties are reduced by a factor of about two. The accuracy on the estimated total cc production cross section is likewise improved. The measured pTdifferential cross sections are compared with the results of three perturbative QCD calculations.application/pdfengThe European physical journal. C, Particles and fields. Berlin. Vol. 77, no. 8 (Aug. 2017), 550, 21 p.Aceleradores de partículasColisao de ions pesadosColisões proton-protonMeasurement of D-meson production at mid-rapidity in pp collisions at √s=7 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:UFRGSORIGINAL001048680.pdfTexto completo (inglês)application/pdf1196653http://www.lume.ufrgs.br/bitstream/10183/181535/1/001048680.pdf29d2d5cd4b79ae27112d8c645201e7a9MD51TEXT001048680.pdf.txt001048680.pdf.txtExtracted Texttext/plain100484http://www.lume.ufrgs.br/bitstream/10183/181535/2/001048680.pdf.txtc63e044be0a28346b5d9c51cb0eeda07MD52THUMBNAIL001048680.pdf.jpg001048680.pdf.jpgGenerated Thumbnailimage/jpeg2127http://www.lume.ufrgs.br/bitstream/10183/181535/3/001048680.pdf.jpgc576838e2b58eb6b4eeaa36a74767f81MD5310183/1815352023-11-30 04:23:02.862358oai:www.lume.ufrgs.br:10183/181535Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-11-30T06:23:02Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv Measurement of D-meson production at mid-rapidity in pp collisions at √s=7 TeV
title Measurement of D-meson production at mid-rapidity in pp collisions at √s=7 TeV
spellingShingle Measurement of D-meson production at mid-rapidity in pp collisions at √s=7 TeV
Acharya, Shreyasi
Aceleradores de partículas
Colisao de ions pesados
Colisões proton-proton
title_short Measurement of D-meson production at mid-rapidity in pp collisions at √s=7 TeV
title_full Measurement of D-meson production at mid-rapidity in pp collisions at √s=7 TeV
title_fullStr Measurement of D-meson production at mid-rapidity in pp collisions at √s=7 TeV
title_full_unstemmed Measurement of D-meson production at mid-rapidity in pp collisions at √s=7 TeV
title_sort Measurement of D-meson production at mid-rapidity in pp collisions at √s=7 TeV
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
Colisao de ions pesados
Colisões proton-proton
topic Aceleradores de partículas
Colisao de ions pesados
Colisões proton-proton
description The production cross sections for prompt charmed mesons D0, D+, D∗+ and D+ s were measured at mid-rapidity in proton–proton collisions at a centre-of-mass energy √ s = 7 TeV with the ALICE detector at the Large Hadron Collider (LHC). D mesons were reconstructed from their decays D0 → K− π +, D+ → K− π + π +, D∗+ → D0π +, D+ s → φπ + → K−K+ π +, and their charge conjugates. With respect to previous measurements in the same rapidity region, the coverage in transverse momentum (pT) is extended and the uncertainties are reduced by a factor of about two. The accuracy on the estimated total cc production cross section is likewise improved. The measured pTdifferential cross sections are compared with the results of three perturbative QCD calculations.
publishDate 2017
dc.date.issued.fl_str_mv 2017
dc.date.accessioned.fl_str_mv 2018-08-31T02:29:10Z
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
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10183/181535
dc.identifier.issn.pt_BR.fl_str_mv 1434-6044
dc.identifier.nrb.pt_BR.fl_str_mv 001048680
identifier_str_mv 1434-6044
001048680
url http://hdl.handle.net/10183/181535
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. 77, no. 8 (Aug. 2017), 550, 21 p.
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eu_rights_str_mv openAccess
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