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Measurement of isolated photon-hadron and jet correlations in 5 TeV pp and p-Pb collisions with the ALICE detector at the LHC
Photon-jet correlations are a promising channel for the study of parton energy loss in nuclear collisions. While existing measurements in pp and nuclear collisions have used high energy photons and jets, we focus on an unexplored kinematic range given by $12<p_{\mathrm{T}}<30$ GeV/$c$ photons...
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Lenguaje: | eng |
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SISSA
2018
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Acceso en línea: | https://dx.doi.org/10.22323/1.345.0058 http://cds.cern.ch/record/2651072 |
_version_ | 1780960846520778752 |
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author | Arratia, Miguel |
author_facet | Arratia, Miguel |
author_sort | Arratia, Miguel |
collection | CERN |
description | Photon-jet correlations are a promising channel for the study of parton energy loss in nuclear collisions. While existing measurements in pp and nuclear collisions have used high energy photons and jets, we focus on an unexplored kinematic range given by $12<p_{\mathrm{T}}<30$ GeV/$c$ photons and the corresponding low jet $p_{\mathrm{T}}$. We present results obtained using 5.02 TeV pp and p-Pb ~collisions. A combination of isolation and electromagnetic shower-shape variables is used to reduce the large background from meson decays and fragmentation photons. We show how the access to this kinematic range of hard probes was achieved with a novel combination of high rate and low-momentum tracking using the electromagnetic calorimeters and the inner tracking system of the ALICE experiment. |
id | cern-2651072 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2018 |
publisher | SISSA |
record_format | invenio |
spelling | cern-26510722023-08-09T03:39:07Zdoi:10.22323/1.345.0058http://cds.cern.ch/record/2651072engArratia, MiguelMeasurement of isolated photon-hadron and jet correlations in 5 TeV pp and p-Pb collisions with the ALICE detector at the LHChep-exParticle Physics - Experimentnucl-exNuclear Physics - ExperimentPhoton-jet correlations are a promising channel for the study of parton energy loss in nuclear collisions. While existing measurements in pp and nuclear collisions have used high energy photons and jets, we focus on an unexplored kinematic range given by $12<p_{\mathrm{T}}<30$ GeV/$c$ photons and the corresponding low jet $p_{\mathrm{T}}$. We present results obtained using 5.02 TeV pp and p-Pb ~collisions. A combination of isolation and electromagnetic shower-shape variables is used to reduce the large background from meson decays and fragmentation photons. We show how the access to this kinematic range of hard probes was achieved with a novel combination of high rate and low-momentum tracking using the electromagnetic calorimeters and the inner tracking system of the ALICE experiment.Photon-jet correlations are a promising channel for the study of parton energy loss in nuclear collisions. While existing measurements in pp and nuclear collisions have used high energy photons and jets, we focus on an unexplored kinematic range given by $12<p_{\mathrm{T}}<30$ GeV/$c$ photons and the corresponding low jet $p_{\mathrm{T}}$. We present results obtained using 5.02 TeV pp and p-Pb collisions. A combination of isolation and electromagnetic shower-shape variables is used to reduce the large background from meson decays and fragmentation photons. We show how the access to this kinematic range of hard probes was achieved with a novel combination of high rate and low-momentum tracking using the electromagnetic calorimeters and the inner tracking system of the ALICE experiment.SISSAarXiv:1812.04158oai:cds.cern.ch:26510722018-12-10 |
spellingShingle | hep-ex Particle Physics - Experiment nucl-ex Nuclear Physics - Experiment Arratia, Miguel Measurement of isolated photon-hadron and jet correlations in 5 TeV pp and p-Pb collisions with the ALICE detector at the LHC |
title | Measurement of isolated photon-hadron and jet correlations in 5 TeV pp and p-Pb collisions with the ALICE detector at the LHC |
title_full | Measurement of isolated photon-hadron and jet correlations in 5 TeV pp and p-Pb collisions with the ALICE detector at the LHC |
title_fullStr | Measurement of isolated photon-hadron and jet correlations in 5 TeV pp and p-Pb collisions with the ALICE detector at the LHC |
title_full_unstemmed | Measurement of isolated photon-hadron and jet correlations in 5 TeV pp and p-Pb collisions with the ALICE detector at the LHC |
title_short | Measurement of isolated photon-hadron and jet correlations in 5 TeV pp and p-Pb collisions with the ALICE detector at the LHC |
title_sort | measurement of isolated photon-hadron and jet correlations in 5 tev pp and p-pb collisions with the alice detector at the lhc |
topic | hep-ex Particle Physics - Experiment nucl-ex Nuclear Physics - Experiment |
url | https://dx.doi.org/10.22323/1.345.0058 http://cds.cern.ch/record/2651072 |
work_keys_str_mv | AT arratiamiguel measurementofisolatedphotonhadronandjetcorrelationsin5tevppandppbcollisionswiththealicedetectoratthelhc |