Jet-hadron correlations relative to the event plane at the LHC with ALICE

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Jet quenching is observed at both RHIC and LHC energies. This suggests that partons lose energy as they traverse the medium. When the trigger jet is studied relative to the event plane, the path length dependence of medium modifications can be studied. We present measurements of the angular correlat...

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Detalles Bibliográficos
Autor principal: Mazer, Joel
Lenguaje:eng
Publicado: 2017
Materias:
nucl-ex
Nuclear Physics - Experiment
Acceso en línea:https://dx.doi.org/10.1088/1742-6596/832/1/012010
http://cds.cern.ch/record/2257528
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author Mazer, Joel
author_facet Mazer, Joel
author_sort Mazer, Joel
collection CERN
description Jet quenching is observed at both RHIC and LHC energies. This suggests that partons lose energy as they traverse the medium. When the trigger jet is studied relative to the event plane, the path length dependence of medium modifications can be studied. We present measurements of the angular correlations relative to the event plane between reconstructed jets and charged hadrons in Pb–Pb collisions at $\sqrt{{s}_{{NN}}}$ = 2.76 TeV in ALICE. A newly implemented, robust background subtraction method to remove the complex, flow dominated, combinatorial background is used in this analysis.
id cern-2257528
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2017
record_format invenio
spelling cern-22575282021-09-16T11:31:28Zdoi:10.1088/1742-6596/832/1/012010http://cds.cern.ch/record/2257528engMazer, JoelJet-hadron correlations relative to the event plane at the LHC with ALICEnucl-exNuclear Physics - ExperimentJet quenching is observed at both RHIC and LHC energies. This suggests that partons lose energy as they traverse the medium. When the trigger jet is studied relative to the event plane, the path length dependence of medium modifications can be studied. We present measurements of the angular correlations relative to the event plane between reconstructed jets and charged hadrons in Pb–Pb collisions at $\sqrt{{s}_{{NN}}}$ = 2.76 TeV in ALICE. A newly implemented, robust background subtraction method to remove the complex, flow dominated, combinatorial background is used in this analysis.The hot, dense and strongly interacting medium known as the Quark Gluon Plasma (QGP) is produced in relativistic heavy-ion collisions at the Large Hadron Collider (LHC). Early in the collisions, quarks and gluons from the incoming nuclei collide to produce high momentum partons which fragment into collimated sprays of hadrons called "jets". In pp collisions, jet production is well understood within the framework of perturbative QCD and acts as a rigorous baseline measurement for jet quenching measurements. Using pp as a reference, we can compare to heavy-ion collision systems, and study the modification of the $p_{T}$ or angular distributions of jet fragments. A recently developed background subtraction method to remove the complex, flow dominated, heavy-ion background will be used in this analysis. Azimuthal angular correlations of charged hadrons with respect to the axis of a full (charged + neutral) reconstructed 'trigger' jet in Pb--Pb collisions at $\sqrt{s_{NN}}=2.76$ TeV in ALICE will be presented here. The analysis of angular correlations for different orientations of the trigger relative to the event plane allows for the study of the path length dependence of medium modifications to jets. The status of studies of the event plane dependence of angular correlations will be presented.arXiv:1703.09287oai:cds.cern.ch:22575282017-03-27
spellingShingle nucl-ex
Nuclear Physics - Experiment
Mazer, Joel
Jet-hadron correlations relative to the event plane at the LHC with ALICE
title Jet-hadron correlations relative to the event plane at the LHC with ALICE
title_full Jet-hadron correlations relative to the event plane at the LHC with ALICE
title_fullStr Jet-hadron correlations relative to the event plane at the LHC with ALICE
title_full_unstemmed Jet-hadron correlations relative to the event plane at the LHC with ALICE
title_short Jet-hadron correlations relative to the event plane at the LHC with ALICE
title_sort jet-hadron correlations relative to the event plane at the lhc with alice
topic nucl-ex
Nuclear Physics - Experiment
url https://dx.doi.org/10.1088/1742-6596/832/1/012010
http://cds.cern.ch/record/2257528
work_keys_str_mv AT mazerjoel jethadroncorrelationsrelativetotheeventplaneatthelhcwithalice

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