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Measurements of the azimuthal anisotropy of jets and high-$p_{\mathrm{T}}$ charged particles in Pb+Pb collisions with the ATLAS detector

The heavy-ion collisions produce a hot, dense medium, and high-momentum partons from the collision traverse this medium while losing energy to it. This talk presents new measurements of the azimuthal dependence with respect to the event plane of single jet yields and high momentum charged particles...

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Autor principal: Wang, Xiaoning
Lenguaje:eng
Publicado: 2023
Materias:
Acceso en línea:http://cds.cern.ch/record/2869847
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author Wang, Xiaoning
author_facet Wang, Xiaoning
author_sort Wang, Xiaoning
collection CERN
description The heavy-ion collisions produce a hot, dense medium, and high-momentum partons from the collision traverse this medium while losing energy to it. This talk presents new measurements of the azimuthal dependence with respect to the event plane of single jet yields and high momentum charged particles yields in Pb+Pb collisions at $\sqrt{s_{_\text{NN}}}=5.02$ TeV. As the distance traversed by the partons in the medium is dependent on the angle with respect to the event plane at which the partons are produced, these measurements give insight into the path-length dependence of parton energy loss. The magnitude of angular modulation is quantified by the parameter $v_n$ with respect to the nth order event plane. In this talk we will present these two measurements that show $v_2$, $v_3$, and $v_4$ as a function of $p_{\mathrm{T}}$ and collision centrality. In both measurements, a non-zero value of $v_2$ are observed. A non-zero $v_3$ is observed in the jet measurement while the charged particle $v_3$ remains zero. Both measurements explore a higher transverse momentum regime and higher-order harmonics than current measurements benefiting from the high statistics 2018 Pb+Pb heavy ion data recorded by ATLAS. These measurements provide new information about the path-length dependence of jet quenching.
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institution Organización Europea para la Investigación Nuclear
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spelling cern-28698472023-09-09T18:32:33Zhttp://cds.cern.ch/record/2869847engWang, XiaoningMeasurements of the azimuthal anisotropy of jets and high-$p_{\mathrm{T}}$ charged particles in Pb+Pb collisions with the ATLAS detectorParticle Physics - ExperimentThe heavy-ion collisions produce a hot, dense medium, and high-momentum partons from the collision traverse this medium while losing energy to it. This talk presents new measurements of the azimuthal dependence with respect to the event plane of single jet yields and high momentum charged particles yields in Pb+Pb collisions at $\sqrt{s_{_\text{NN}}}=5.02$ TeV. As the distance traversed by the partons in the medium is dependent on the angle with respect to the event plane at which the partons are produced, these measurements give insight into the path-length dependence of parton energy loss. The magnitude of angular modulation is quantified by the parameter $v_n$ with respect to the nth order event plane. In this talk we will present these two measurements that show $v_2$, $v_3$, and $v_4$ as a function of $p_{\mathrm{T}}$ and collision centrality. In both measurements, a non-zero value of $v_2$ are observed. A non-zero $v_3$ is observed in the jet measurement while the charged particle $v_3$ remains zero. Both measurements explore a higher transverse momentum regime and higher-order harmonics than current measurements benefiting from the high statistics 2018 Pb+Pb heavy ion data recorded by ATLAS. These measurements provide new information about the path-length dependence of jet quenching.ATL-PHYS-PROC-2023-050oai:cds.cern.ch:28698472023-09-09
spellingShingle Particle Physics - Experiment
Wang, Xiaoning
Measurements of the azimuthal anisotropy of jets and high-$p_{\mathrm{T}}$ charged particles in Pb+Pb collisions with the ATLAS detector
title Measurements of the azimuthal anisotropy of jets and high-$p_{\mathrm{T}}$ charged particles in Pb+Pb collisions with the ATLAS detector
title_full Measurements of the azimuthal anisotropy of jets and high-$p_{\mathrm{T}}$ charged particles in Pb+Pb collisions with the ATLAS detector
title_fullStr Measurements of the azimuthal anisotropy of jets and high-$p_{\mathrm{T}}$ charged particles in Pb+Pb collisions with the ATLAS detector
title_full_unstemmed Measurements of the azimuthal anisotropy of jets and high-$p_{\mathrm{T}}$ charged particles in Pb+Pb collisions with the ATLAS detector
title_short Measurements of the azimuthal anisotropy of jets and high-$p_{\mathrm{T}}$ charged particles in Pb+Pb collisions with the ATLAS detector
title_sort measurements of the azimuthal anisotropy of jets and high-$p_{\mathrm{t}}$ charged particles in pb+pb collisions with the atlas detector
topic Particle Physics - Experiment
url http://cds.cern.ch/record/2869847
work_keys_str_mv AT wangxiaoning measurementsoftheazimuthalanisotropyofjetsandhighpmathrmtchargedparticlesinpbpbcollisionswiththeatlasdetector