Measurements of the suppression and correlations of dijets in Xe+Xe collisions at Formula Presented TeV
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Fecha
2023-08
Profesor/a Guía
Facultad/escuela
Idioma
en
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Editor
American Physical Society
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Licencia CC
Attribution 4.0 International Deed (CC BY 4.0)
Licencia CC
https://creativecommons.org/licenses/by/4.0/
Resumen
Measurements of the suppression and correlations of dijets is performed using 3 µ b − 1 of Xe+Xe data at s N N = 5.44 TeV collected with the ATLAS detector at the CERN Large Hadron Collider. Dijets with jets reconstructed using the R = 0.4 anti- k t algorithm are measured differentially in jet p T over the range of 32 to 398 GeV and the centrality of the collisions. Significant dijet momentum imbalance is found in the most central Xe+Xe collisions, which decreases in more peripheral collisions. Results from the measurement of per-pair normalized and absolutely normalized dijet p T balance are compared with previous Pb + Pb measurements at s N N = 5.02 TeV. The differences between the dijet suppression in Xe+Xe and Pb + Pb are further quantified by the ratio of pair nuclear-modification factors. The results are found to be consistent with those measured in Pb + Pb data when compared in classes of the same event activity and when taking into account the difference between the center-of-mass energies of the initial parton scattering process in Xe+Xe and Pb + Pb collisions. These results should provide input for a better understanding of the role of energy density, system size, path length, and fluctuations in the parton energy loss. ©2023 CERN, for the ATLAS Collaboration.
Notas
Indexación: Scopus
Palabras clave
Jet Quenching, Particle correlations & Fluctuations, Quark-Gluo Plasma, Relativisc Heavy-ion Coliisions, Xe+Xe Collisions, TeV, Dijets
Citación
Physical Review C. Volume 108, Issue 2. August 2023. Article number 024906
DOI
10.1103/PhysRevC.108.024906