Longitudinal Flow Decorrelations in Xe + Xe Collisions at √s<sub>NN</sub> = 5.44 TeV with the ATLAS Detector

The first measurement of longitudinal decorrelations of harmonic flow amplitudes v<sub>n</sub> for n = 2-4 in Xe + Xe collisions at √s<sub>NN</sub> = 5.44  TeV is obtained using 3  μb⁻¹ of data with the ATLAS detector at the LHC. The decorrelation signal for v₃ and v₄ is foun...

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Autores principales: Alonso, Francisco, Arduh, Francisco Anuar, Dova, María Teresa, Hoya, Joaquín, Monticelli, Fernando Gabriel, Orellana, Gonzalo Enrique, Wahlberg, Hernán Pablo, The ATLAS Collaboration
Formato: Articulo
Lenguaje:Inglés
Publicado: 2021
Materias:
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/142274
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id I19-R120-10915-142274
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
Física
Collective flow
Particle correlations & fluctuations
Quark-gluon plasma
Relativistic heavy-ion collisions
spellingShingle Ciencias Exactas
Física
Collective flow
Particle correlations & fluctuations
Quark-gluon plasma
Relativistic heavy-ion collisions
Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Hoya, Joaquín
Monticelli, Fernando Gabriel
Orellana, Gonzalo Enrique
Wahlberg, Hernán Pablo
The ATLAS Collaboration
Longitudinal Flow Decorrelations in Xe + Xe Collisions at √s<sub>NN</sub> = 5.44 TeV with the ATLAS Detector
topic_facet Ciencias Exactas
Física
Collective flow
Particle correlations & fluctuations
Quark-gluon plasma
Relativistic heavy-ion collisions
description The first measurement of longitudinal decorrelations of harmonic flow amplitudes v<sub>n</sub> for n = 2-4 in Xe + Xe collisions at √s<sub>NN</sub> = 5.44  TeV is obtained using 3  μb⁻¹ of data with the ATLAS detector at the LHC. The decorrelation signal for v₃ and v₄ is found to be nearly independent of collision centrality and transverse momentum (p<sub>T</sub>) requirements on final-state particles, but for v₂ a strong centrality and p<sub>T</sub> dependence is seen. When compared with the results from Pb + Pb collisions at √s<sub>NN</sub> = 5.02  TeV, the longitudinal decorrelation signal in midcentral Xe + Xe collisions is found to be larger for v₂, but smaller for v₃. Current hydrodynamic models reproduce the ratios of the v<sub>n</sub> measured in Xe + Xe collisions to those in Pb + Pb collisions but fail to describe the magnitudes and trends of the ratios of longitudinal flow decorrelations between Xe + Xe and Pb + Pb. The results on the system-size dependence provide new insights and an important lever arm to separate effects of the longitudinal structure of the initial state from other early and late time effects in heavy-ion collisions.
format Articulo
Articulo
author Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Hoya, Joaquín
Monticelli, Fernando Gabriel
Orellana, Gonzalo Enrique
Wahlberg, Hernán Pablo
The ATLAS Collaboration
author_facet Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Hoya, Joaquín
Monticelli, Fernando Gabriel
Orellana, Gonzalo Enrique
Wahlberg, Hernán Pablo
The ATLAS Collaboration
author_sort Alonso, Francisco
title Longitudinal Flow Decorrelations in Xe + Xe Collisions at √s<sub>NN</sub> = 5.44 TeV with the ATLAS Detector
title_short Longitudinal Flow Decorrelations in Xe + Xe Collisions at √s<sub>NN</sub> = 5.44 TeV with the ATLAS Detector
title_full Longitudinal Flow Decorrelations in Xe + Xe Collisions at √s<sub>NN</sub> = 5.44 TeV with the ATLAS Detector
title_fullStr Longitudinal Flow Decorrelations in Xe + Xe Collisions at √s<sub>NN</sub> = 5.44 TeV with the ATLAS Detector
title_full_unstemmed Longitudinal Flow Decorrelations in Xe + Xe Collisions at √s<sub>NN</sub> = 5.44 TeV with the ATLAS Detector
title_sort longitudinal flow decorrelations in xe + xe collisions at √s<sub>nn</sub> = 5.44 tev with the atlas detector
publishDate 2021
url http://sedici.unlp.edu.ar/handle/10915/142274
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