@Article{ATLASCollaborationAaboud_etal2018,
author="ATLAS Collaboration (Aaboud, M. et al
and Alvarez Piqueras, D.
and Barranco Navarro, L.
and Cabrera Urban, S.
and Castillo Gimenez, V.
and Cerda Alberich, L.
and Costa, M. J.
and Escobar, C.
and Estrada Pastor, O.
and Fernandez Martinez, P.
and Ferrer, A.
and Fiorini, L.
and Fuster, J.
and Garcia, C.
and Garcia Navarro, J. E.
and Gonzalez de la Hoz, S.
and Higon-Rodriguez, E.
and Jimenez Pena, J.
and Lacasta, C.
and Madaffari, D.
and Mamuzic, J.
and Marti-Garcia, S.
and Melini, D.
and Mitsou, V. A.
and Pedraza Lopez, S.
and Rodriguez Bosca, S.
and Rodriguez Rodriguez, D.
and Romero Adam, E.
and Salt, J.
and Sanchez Martinez, V.
and Soldevila, U.
and Sanchez, J.
and Valero, A.
and Valls Ferrer, J. A.
and Vos, M.",
title="Measurement of longitudinal flow decorrelations in Pb plus Pb collisions at root s(NN)=2.76 and 5.02 TeV with the ATLAS detector",
journal="European Physical Journal C",
year="2018",
publisher="Springer",
volume="78",
number="2",
pages="142--37pp",
abstract="Measurements of longitudinal flow correlations are presented for charged particles in the pseudorapidity range vertical bar eta vertical bar < 2.4 using 7 $\mu$b(-1) and 470 $\mu$b(-1) of Pb+Pb collisions at root s(NN) = 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 v(n) measured in two separated eta intervals does not factorise into the product of single-particle coefficients, and this breaking of factorisation, or flow decorrelation, increases linearly with the eta separation between the intervals. The flow decorrelation is stronger at 2.76 TeVthan at 5.02 TeV. Higher-order moments of the correlations are also measured, and the corresponding linear coefficients for the kth-moment of the v(n) are found to be proportional to k for v(3), but not for v(2). The decorrelation effect is separated into contributions from the magnitude of v(n) and the event-plane orientation, each as a function of eta. These two contributions are found to be comparable. The longitudinal flow correlations are also measured between v(n) of different order in n. The decorrelations of v(2) and v(3) are found to be independent of each other, while the decorrelations of v(4) and v(5) are found to be driven by the nonlinear contribution from v(2)(2) and v(2)v(3), respectively.",
optnote="WOS:000425395800005",
optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=3496), last updated on Tue, 06 Mar 2018 16:08:43 +0000",
issn="1434-6044",
doi="10.1140/epjc/s10052-018-5605-7",
opturl="http://arxiv.org/abs/1709.02301",
opturl="https://doi.org/10.1140/epjc/s10052-018-5605-7",
archivePrefix="arXiv",
eprint="1709.02301",
language="English"
}