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Measurements of anisotropic flow and flow fluctuations in Xe–Xe and Pb–Pb collisions with ALICE
Anisotropic flow is a key observable to characterise the system created in heavy-ion collisions, as it is sensitive to the system's initial state, transport properties, the equation of state and freeze-out conditions. In these proceedings we present the anisotropic flow coefficients of inclusiv...
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Lenguaje: | eng |
Publicado: |
2019
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Acceso en línea: | https://dx.doi.org/10.1016/j.nuclphysa.2018.11.026 http://cds.cern.ch/record/2800931 |
_version_ | 1780972667387510784 |
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author | Margutti, Jacopo |
author_facet | Margutti, Jacopo |
author_sort | Margutti, Jacopo |
collection | CERN |
description | Anisotropic flow is a key observable to characterise the system created in heavy-ion collisions, as it is sensitive to the system's initial state, transport properties, the equation of state and freeze-out conditions. In these proceedings we present the anisotropic flow coefficients of inclusive charged particles in Pb–Pb collisions at sNN=2.76and5.02TeV , and in Xe–Xe collisions at sNN=5.44TeV . The results are reported for a wide range of particle transverse momentum within the pseudo-rapidity range | η | < 0.8 at different collision centralities. The energy and system dependence are found to place strong constraints on the temperature dependence of η / s and the modeling of the initial state, respectively. We also present detailed studies of flow fluctuations in heavy-ion collisions, in order to precisely characterise the underlying flow probability density function. We find evidence of non-Bessel-Gaussian fluctuations and discuss the origin of this observation. |
id | cern-2800931 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2019 |
record_format | invenio |
spelling | cern-28009312022-10-28T12:59:08Zdoi:10.1016/j.nuclphysa.2018.11.026http://cds.cern.ch/record/2800931engMargutti, JacopoMeasurements of anisotropic flow and flow fluctuations in Xe–Xe and Pb–Pb collisions with ALICEParticle Physics - ExperimentNuclear Physics - ExperimentAnisotropic flow is a key observable to characterise the system created in heavy-ion collisions, as it is sensitive to the system's initial state, transport properties, the equation of state and freeze-out conditions. In these proceedings we present the anisotropic flow coefficients of inclusive charged particles in Pb–Pb collisions at sNN=2.76and5.02TeV , and in Xe–Xe collisions at sNN=5.44TeV . The results are reported for a wide range of particle transverse momentum within the pseudo-rapidity range | η | < 0.8 at different collision centralities. The energy and system dependence are found to place strong constraints on the temperature dependence of η / s and the modeling of the initial state, respectively. We also present detailed studies of flow fluctuations in heavy-ion collisions, in order to precisely characterise the underlying flow probability density function. We find evidence of non-Bessel-Gaussian fluctuations and discuss the origin of this observation.oai:cds.cern.ch:28009312019 |
spellingShingle | Particle Physics - Experiment Nuclear Physics - Experiment Margutti, Jacopo Measurements of anisotropic flow and flow fluctuations in Xe–Xe and Pb–Pb collisions with ALICE |
title | Measurements of anisotropic flow and flow fluctuations in Xe–Xe and Pb–Pb collisions with ALICE |
title_full | Measurements of anisotropic flow and flow fluctuations in Xe–Xe and Pb–Pb collisions with ALICE |
title_fullStr | Measurements of anisotropic flow and flow fluctuations in Xe–Xe and Pb–Pb collisions with ALICE |
title_full_unstemmed | Measurements of anisotropic flow and flow fluctuations in Xe–Xe and Pb–Pb collisions with ALICE |
title_short | Measurements of anisotropic flow and flow fluctuations in Xe–Xe and Pb–Pb collisions with ALICE |
title_sort | measurements of anisotropic flow and flow fluctuations in xe–xe and pb–pb collisions with alice |
topic | Particle Physics - Experiment Nuclear Physics - Experiment |
url | https://dx.doi.org/10.1016/j.nuclphysa.2018.11.026 http://cds.cern.ch/record/2800931 |
work_keys_str_mv | AT marguttijacopo measurementsofanisotropicflowandflowfluctuationsinxexeandpbpbcollisionswithalice |