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Heavy-flavour measurements in pp and Pb-Pb collisions with the ALICE experiment at the CERN LHC
The ALICE experiment at the CERN LHC has conducted first systematic studies of heavy-flavour hadron production in pp collisions at sqrt(s) = 7 TeV and in Pb-Pb collisions at sqrt(s_NN) = 2.76 TeV. In pp collisions the differential production cross sections of D mesons at mid-rapidity, as well as the...
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Lenguaje: | eng |
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2012
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Acceso en línea: | https://dx.doi.org/10.22323/1.168.0014 http://cds.cern.ch/record/1428011 |
_version_ | 1780924281433096192 |
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author | Averbeck, Ralf |
author_facet | Averbeck, Ralf |
author_sort | Averbeck, Ralf |
collection | CERN |
description | The ALICE experiment at the CERN LHC has conducted first systematic studies of heavy-flavour hadron production in pp collisions at sqrt(s) = 7 TeV and in Pb-Pb collisions at sqrt(s_NN) = 2.76 TeV. In pp collisions the differential production cross sections of D mesons at mid-rapidity, as well as the cross sections for electrons and muons from semileptonic heavy-flavour hadron decays at mid- and forward-rapidity, respectively, have been measured. These data provide a crucial testing ground for perturbative QCD calculations in the new LHC energy regime. In Pb-Pb collisions, the nuclear modification factor R_AA(p_t) has been measured for D mesons and for leptons from heavy-flavour decays, indicating energy loss of heavy quarks in the partonic medium produced in Pb-Pb collisions at the LHC. The strong interaction of charm quarks with this medium might also generate a non-zero elliptic flow of D mesons as first studies of the azimuthal anisotropy of D^0-meson production suggest. |
id | cern-1428011 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2012 |
record_format | invenio |
spelling | cern-14280112023-03-15T19:12:39Zdoi:10.22323/1.168.0014http://cds.cern.ch/record/1428011engAverbeck, RalfHeavy-flavour measurements in pp and Pb-Pb collisions with the ALICE experiment at the CERN LHCNuclear Physics - ExperimentThe ALICE experiment at the CERN LHC has conducted first systematic studies of heavy-flavour hadron production in pp collisions at sqrt(s) = 7 TeV and in Pb-Pb collisions at sqrt(s_NN) = 2.76 TeV. In pp collisions the differential production cross sections of D mesons at mid-rapidity, as well as the cross sections for electrons and muons from semileptonic heavy-flavour hadron decays at mid- and forward-rapidity, respectively, have been measured. These data provide a crucial testing ground for perturbative QCD calculations in the new LHC energy regime. In Pb-Pb collisions, the nuclear modification factor R_AA(p_t) has been measured for D mesons and for leptons from heavy-flavour decays, indicating energy loss of heavy quarks in the partonic medium produced in Pb-Pb collisions at the LHC. The strong interaction of charm quarks with this medium might also generate a non-zero elliptic flow of D mesons as first studies of the azimuthal anisotropy of D^0-meson production suggest.The ALICE experiment at the CERN LHC has conducted first systematic studies of heavy-flavour hadron production in pp collisions at sqrt(s) = 7 TeV and in Pb-Pb collisions at sqrt(s_NN) = 2.76 TeV. In pp collisions the differential production cross sections of D mesons at mid-rapidity, as well as the cross sections for electrons and muons from semileptonic heavy-flavour hadron decays at mid- and forward-rapidity, respectively, have been measured. These data provide a crucial testing ground for perturbative QCD calculations in the new LHC energy regime. In Pb-Pb collisions, the nuclear modification factor R_AA(p_t) has been measured for D mesons and for leptons from heavy-flavour decays, indicating energy loss of heavy quarks in the partonic medium produced in Pb-Pb collisions at the LHC. The strong interaction of charm quarks with this medium might also generate a non-zero elliptic flow of D mesons as first studies of the azimuthal anisotropy of D^0-meson production suggest.arXiv:1202.6329oai:cds.cern.ch:14280112012-02-29 |
spellingShingle | Nuclear Physics - Experiment Averbeck, Ralf Heavy-flavour measurements in pp and Pb-Pb collisions with the ALICE experiment at the CERN LHC |
title | Heavy-flavour measurements in pp and Pb-Pb collisions with the ALICE experiment at the CERN LHC |
title_full | Heavy-flavour measurements in pp and Pb-Pb collisions with the ALICE experiment at the CERN LHC |
title_fullStr | Heavy-flavour measurements in pp and Pb-Pb collisions with the ALICE experiment at the CERN LHC |
title_full_unstemmed | Heavy-flavour measurements in pp and Pb-Pb collisions with the ALICE experiment at the CERN LHC |
title_short | Heavy-flavour measurements in pp and Pb-Pb collisions with the ALICE experiment at the CERN LHC |
title_sort | heavy-flavour measurements in pp and pb-pb collisions with the alice experiment at the cern lhc |
topic | Nuclear Physics - Experiment |
url | https://dx.doi.org/10.22323/1.168.0014 http://cds.cern.ch/record/1428011 |
work_keys_str_mv | AT averbeckralf heavyflavourmeasurementsinppandpbpbcollisionswiththealiceexperimentatthecernlhc |