dc.creatorAlconada Verzini, María Josefina
dc.creatorAlonso, Francisco
dc.creatorArduh, Francisco Anuar
dc.creatorDova, María Teresa
dc.creatorHoya, Joaquín
dc.creatorMonticelli, Fernando Gabriel
dc.creatorWahlberg, Hernán Pablo
dc.creatorThe ATLAS Collaboration
dc.date2018-02
dc.date2019-07-17T15:38:43Z
dc.identifierhttp://sedici.unlp.edu.ar/handle/10915/78344
dc.identifierissn:1434-6052
dc.descriptionMeasurements of longitudinal flow correlations are presented for charged particles in the pseudorapidity range |η| < 2.4 using 7 μb−1 and 470 μb−1 of Pb+Pb collisions at √sNN = 2.76 and 5.02 TeV, respectively, recorded by the ATLAS detector at the LHC. It is found that the correlation between the harmonic flow coefficients vn measured in two separated η intervals does not factorise into the product of single-particle coefficients, and this breaking of factorisation, or flow decorrelation, increases linearly with the η separation between the intervals. The flow decorrelation is stronger at 2.76 TeV than at 5.02 TeV. Higher-order moments of the correlations are also measured, and the corresponding linear coefficients for the kth-moment of the vn are found to be proportional to k for v3, but not for v2. The decorrelation effect is separated into contributions from the magnitude of vn and the event-plane orientation, each as a function of η. These two contributions are found to be comparable. The longitudinal flow correlations are also measured between vn of different order in n. The decorrelations of v2 and v3 are found to be independent of each other, while the decorrela- tions of v4 and v5 are found to be driven by the nonlinear contribution from v2 2 and v2v3, respectively.
dc.descriptionFacultad de Ciencias Exactas
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.subjectCiencias Exactas
dc.subjectlongitudinal flow correlations
dc.subjectPb+Pb collisions
dc.subjectATLAS detector
dc.subjectFísica
dc.titleMeasurement of longitudinal flow decorrelations in Pb+Pb collisions at √sNN = 2.76 and 5.02 TeV with the ATLAS detector
dc.typeArticulo
dc.typeArticulo


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