Measurement of flow harmonics correlations with mean transverse momentum in lead–lead and proton–lead collisions at √sNN=5.02TeV with the ATLAS detector

dc.creatorAlonso, Francisco
dc.creatorArduh, Francisco Anuar
dc.creatorDova, María Teresa
dc.creatorHoya, Joaquín
dc.creatorMonticelli, Fernando Gabriel
dc.creatorOrellana, Gonzalo Enrique
dc.creatorWahlberg, Hernán Pablo
dc.creatorThe ATLAS Collaboration
dc.date2019
dc.date2021-09-17T16:45:39Z
dc.date.accessioned2023-07-15T03:10:24Z
dc.date.available2023-07-15T03:10:24Z
dc.identifierhttp://sedici.unlp.edu.ar/handle/10915/125097
dc.identifierissn:1434-6044
dc.identifierissn:1434-6052
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/7464714
dc.descriptionTo assess the properties of the quark–gluon plasma formed in ultrarelativistic ion collisions, the ATLAS experiment at the LHC measures a correlation between the mean transverse momentum and the flow harmonics. The analysis uses data samples of lead–lead and proton–lead collisions obtained at the centre-of-mass energy per nucleon pair of 5.02 TeV, corresponding to total integrated luminosities of 22 μb⁻¹ and 28 nb⁻¹, respectively. The measurement is performed using a modified Pearson correlation coefficient with the charged-particle tracks on an event-by-event basis. The modified Pearson correlation coefficients for the 2nd-, 3rd-, and 4th-order flow harmonics are measured in the lead–lead collisions as a function of event centrality quantified as the number of charged particles or the number of nucleons participating in the collision. The measurements are performed for several intervals of the charged-particle transverse momentum. The correlation coefficients for all studied harmonics exhibit a strong centrality evolution, which only weakly depends on the charged-particle momentum range. In the proton–lead collisions, the modified Pearson correlation coefficient measured for the 2nd-order flow harmonics shows only weak centrality dependence. The lead-lead data is qualitatively described by the predictions based on the hydrodynamical model.
dc.descriptionInstituto de Física La Plata
dc.formatapplication/pdf
dc.languageen
dc.rightshttp://creativecommons.org/licenses/by/4.0/
dc.rightsCreative Commons Attribution 4.0 International (CC BY 4.0)
dc.subjectFísica
dc.subjectPhysics
dc.subjectIon
dc.subjectNuclear physics
dc.subjectHarmonics
dc.subjectQuark–gluon plasma
dc.subjectAtlas experiment
dc.subjectFlow (mathematics)
dc.subjectProton
dc.subjectLarge hadron collider
dc.titleMeasurement of flow harmonics correlations with mean transverse momentum in lead–lead and proton–lead collisions at √sNN=5.02TeV with the ATLAS detector
dc.typeArticulo
dc.typeArticulo


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