Measurements of elliptic flow and higher-order flow harmonics in 2.76 TeV Pb-Pb collisions with the ATLAS detector

Anisotropy coefficients vn are important observables for studying the hot and dense medium created in heavy-ion collisions. This report presents a comprehensive measurement of the coefficients v2 - v6 in the broad transverse momentum, pseudorapidity and centrality ranges using Pb-Pb collisions data at sNN=2.76TeV from the ATLAS experiment at the LHC. The measurements are done using the event plane and two-particle correlation methods. Both techniques lead to consistent results, showing rising vn at low transverse momenta, then decreasing in the range 3-8 GeV and a weak dependence at the highest transverse momenta. Weak pseudorapidity dependence of vn harmonics was measured for the considered centrality and transverse momentum ranges.