Anisotropic flow of identified hadrons in Xe-Xe collisions at √sNN = 5.44 TeV

Measurements of elliptic (v ₂) and triangular (v ₃) flow coefficients of π ^±, K ^±, p+p ¯ , KS0, and Λ+Λ ¯ obtained with the scalar product method in Xe-Xe collisions at sNN = 5.44 TeV are presented. The results are obtained in the rapidity range |y| < 0.5 and reported as a function of transverse momentum, p _T, for several collision centrality classes. The flow coefficients exhibit a particle mass dependence for p _T< 3 GeV/c, while a grouping according to particle type (i.e., meson and baryon) is found at intermediate transverse momenta (3 < p _T< 8 GeV/c). The magnitude of the baryon v ₂ is larger than that of mesons up to p _T = 6 GeV/c. The centrality dependence of the shape evolution of the p _T-differential v ₂ is studied for the various hadron species. The v ₂ coefficients of π ^±, K ^±, and p+p ¯ are reproduced by MUSIC hydrodynamic calculations coupled to a hadronic cascade model (UrQMD) for p _T< 1 GeV/c. A comparison with v _n measurements in the corresponding centrality intervals in Pb-Pb collisions at sNN = 5.02 TeV yields an enhanced v ₂ in central collisions and diminished value in semicentral collisions. [Figure not available: see fulltext.]