Measurement of the production of charm jets tagged with D0 mesons in pp collisions at s√=7 TeV

Detalhes bibliográficos
Autor(a) principal: Acharya, Shreyasi
Data de Publicação: 2019
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/10183/200521
Resumo: The production of charm jets in proton-proton collisions at a center-of-mass energy of s√=7 TeV was measured with the ALICE detector at the CERN Large Hadron Collider. The measurement is based on a data sample corresponding to a total integrated luminosity of 6.23 nb−1, collected using a minimum-bias trigger. Charm jets are identified by the presence of a D0 meson among their constituents. The D0 mesons are reconstructed from their hadronic decay D0 →K−π+. The D0-meson tagged jets are reconstructed using tracks of charged particles (track-based jets) with the anti-kT algorithm in the jet transverse momentum range 5<pchT,jet< 30 GeV/c and pseudorapidity |ηjet| < 0.5. The fraction of charged jets containing a D0-meson increases with pchT,jet from 0.042 ± 0.004 (stat) ± 0.006 (syst) to 0.080 ± 0.009 (stat) ± 0.008 (syst). The distribution of D0-meson tagged jets as a function of the jet momentum fraction carried by the D0 meson in the direction of the jet axis (zch∥) is reported for two ranges of jet transverse momenta, 5<pchT,jet< 15 GeV/c and 15<pchT,jet< 30 GeV/c in the intervals 0.2<zch∥∥<1.0 and 0.4<zch∥∥<1.0, respectively. The data are compared with results from Monte Carlo event generators (PYTHIA 6, PYTHIA 8 and Herwig 7) and with a Next-to-Leading-Order perturbative Quantum Chromodynamics calculation, obtained with the POWHEG method and interfaced with PYTHIA 6 for the generation of the parton shower, fragmentation, hadronisation and underlying event.
id UFRGS-2_c5aa617e0a8ebdabb64ad0ec967a9fc4
oai_identifier_str oai:www.lume.ufrgs.br:10183/200521
network_acronym_str UFRGS-2
network_name_str Repositório Institucional da UFRGS
repository_id_str
spelling Acharya, ShreyasiGay Ducati, Maria BeatrizPereira, Luis GustavoPezzi, Rafael PerettiALICE Collaboration2019-10-11T03:55:22Z20191029-8479http://hdl.handle.net/10183/200521001103609The production of charm jets in proton-proton collisions at a center-of-mass energy of s√=7 TeV was measured with the ALICE detector at the CERN Large Hadron Collider. The measurement is based on a data sample corresponding to a total integrated luminosity of 6.23 nb−1, collected using a minimum-bias trigger. Charm jets are identified by the presence of a D0 meson among their constituents. The D0 mesons are reconstructed from their hadronic decay D0 →K−π+. The D0-meson tagged jets are reconstructed using tracks of charged particles (track-based jets) with the anti-kT algorithm in the jet transverse momentum range 5<pchT,jet< 30 GeV/c and pseudorapidity |ηjet| < 0.5. The fraction of charged jets containing a D0-meson increases with pchT,jet from 0.042 ± 0.004 (stat) ± 0.006 (syst) to 0.080 ± 0.009 (stat) ± 0.008 (syst). The distribution of D0-meson tagged jets as a function of the jet momentum fraction carried by the D0 meson in the direction of the jet axis (zch∥) is reported for two ranges of jet transverse momenta, 5<pchT,jet< 15 GeV/c and 15<pchT,jet< 30 GeV/c in the intervals 0.2<zch∥∥<1.0 and 0.4<zch∥∥<1.0, respectively. The data are compared with results from Monte Carlo event generators (PYTHIA 6, PYTHIA 8 and Herwig 7) and with a Next-to-Leading-Order perturbative Quantum Chromodynamics calculation, obtained with the POWHEG method and interfaced with PYTHIA 6 for the generation of the parton shower, fragmentation, hadronisation and underlying event.application/pdfengThe journal of high energy physics. Trieste. No. 8 (Aug. 2019), 133, 33 p.Aceleradores de partículasColisões proton-protonMésons DHadron-Hadron scattering (experiments)Measurement of the production of charm jets tagged with D0 mesons 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:UFRGSTEXT001103609.pdf.txt001103609.pdf.txtExtracted Texttext/plain107507http://www.lume.ufrgs.br/bitstream/10183/200521/2/001103609.pdf.txt03e8be0a8f64c89b1563933ce2f7b22cMD52ORIGINAL001103609.pdfTexto completo (inglês)application/pdf998506http://www.lume.ufrgs.br/bitstream/10183/200521/1/001103609.pdf20913c519f1f87a96ece569a710ec7dfMD5110183/2005212023-11-16 04:23:37.057679oai:www.lume.ufrgs.br:10183/200521Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-11-16T06:23:37Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv Measurement of the production of charm jets tagged with D0 mesons in pp collisions at s√=7 TeV
title Measurement of the production of charm jets tagged with D0 mesons in pp collisions at s√=7 TeV
spellingShingle Measurement of the production of charm jets tagged with D0 mesons in pp collisions at s√=7 TeV
Acharya, Shreyasi
Aceleradores de partículas
Colisões proton-proton
Mésons D
Hadron-Hadron scattering (experiments)
title_short Measurement of the production of charm jets tagged with D0 mesons in pp collisions at s√=7 TeV
title_full Measurement of the production of charm jets tagged with D0 mesons in pp collisions at s√=7 TeV
title_fullStr Measurement of the production of charm jets tagged with D0 mesons in pp collisions at s√=7 TeV
title_full_unstemmed Measurement of the production of charm jets tagged with D0 mesons in pp collisions at s√=7 TeV
title_sort Measurement of the production of charm jets tagged with D0 mesons 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
Colisões proton-proton
Mésons D
topic Aceleradores de partículas
Colisões proton-proton
Mésons D
Hadron-Hadron scattering (experiments)
dc.subject.eng.fl_str_mv Hadron-Hadron scattering (experiments)
description The production of charm jets in proton-proton collisions at a center-of-mass energy of s√=7 TeV was measured with the ALICE detector at the CERN Large Hadron Collider. The measurement is based on a data sample corresponding to a total integrated luminosity of 6.23 nb−1, collected using a minimum-bias trigger. Charm jets are identified by the presence of a D0 meson among their constituents. The D0 mesons are reconstructed from their hadronic decay D0 →K−π+. The D0-meson tagged jets are reconstructed using tracks of charged particles (track-based jets) with the anti-kT algorithm in the jet transverse momentum range 5<pchT,jet< 30 GeV/c and pseudorapidity |ηjet| < 0.5. The fraction of charged jets containing a D0-meson increases with pchT,jet from 0.042 ± 0.004 (stat) ± 0.006 (syst) to 0.080 ± 0.009 (stat) ± 0.008 (syst). The distribution of D0-meson tagged jets as a function of the jet momentum fraction carried by the D0 meson in the direction of the jet axis (zch∥) is reported for two ranges of jet transverse momenta, 5<pchT,jet< 15 GeV/c and 15<pchT,jet< 30 GeV/c in the intervals 0.2<zch∥∥<1.0 and 0.4<zch∥∥<1.0, respectively. The data are compared with results from Monte Carlo event generators (PYTHIA 6, PYTHIA 8 and Herwig 7) and with a Next-to-Leading-Order perturbative Quantum Chromodynamics calculation, obtained with the POWHEG method and interfaced with PYTHIA 6 for the generation of the parton shower, fragmentation, hadronisation and underlying event.
publishDate 2019
dc.date.accessioned.fl_str_mv 2019-10-11T03:55:22Z
dc.date.issued.fl_str_mv 2019
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/10183/200521
dc.identifier.issn.pt_BR.fl_str_mv 1029-8479
dc.identifier.nrb.pt_BR.fl_str_mv 001103609
identifier_str_mv 1029-8479
001103609
url http://hdl.handle.net/10183/200521
dc.language.iso.fl_str_mv eng
language eng
dc.relation.ispartof.pt_BR.fl_str_mv The journal of high energy physics. Trieste. No. 8 (Aug. 2019), 133, 33 p.
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:Repositório Institucional da UFRGS
instname:Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS
instname_str Universidade Federal do Rio Grande do Sul (UFRGS)
instacron_str UFRGS
institution UFRGS
reponame_str Repositório Institucional da UFRGS
collection Repositório Institucional da UFRGS
bitstream.url.fl_str_mv http://www.lume.ufrgs.br/bitstream/10183/200521/2/001103609.pdf.txt
http://www.lume.ufrgs.br/bitstream/10183/200521/1/001103609.pdf
bitstream.checksum.fl_str_mv 03e8be0a8f64c89b1563933ce2f7b22c
20913c519f1f87a96ece569a710ec7df
bitstream.checksumAlgorithm.fl_str_mv MD5
MD5
repository.name.fl_str_mv Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)
repository.mail.fl_str_mv
_version_ 1815447697336827904