Measuring hydrodynamical expansion via the production of identified hadrons in Pb-Pb collisions with ALICE

During the LHC Run-2, ALICE has collected data from Pb–Pb collisions at √ sNN =5.02 TeV. The centrality dependence of identified particle production, includingelliptic (v2) and higher harmonic flow coefficients (v3, v4), has been measured.The high-precision measurement of transverse momentum (pT) differential ellipticflow of the φ-meson (whose mass is close to that of the proton) allows for aunique testing of mass ordering at low pT as well as baryon and meson groupingat intermediate pT. The pT-differential hadron spectra are presented and,together with flow coefficients, compared with state-of-the-art calculationsfrom models based on relativistic hydrodynamics coupled with UrQMD. The addedtransport code is to describe rescattering in the hadronic phase, which has beensuccessful in describing the pT-spectra of identified particles up to a fewGeV/c. Moreover, results from the simultaneous Blast-Wave fit to the pTdistributions are compared across multiple collisions energies and system sizesin order to address the evolution of collective behaviour from small systems tolarge systems.