Non-linear ow modes in p-Pb collisions

Measurements of non-linear ow modes, v4,22 and v5,23, have been done on identied particles and charged particles as a function of pT in p-Pb collisions at √sNN = 5.02 TeV. This method can measure the contribution of lower order ow (second and third harmonics) to the higher order ow. The measurement of anisotropic ow is sensitive to the properties of QGP. Such measurements were done in two type. The pT -dierential v4,22 for identied particles in mid central collisions (0-20%) aimed to study the particle production mechanisms and to study the initial state uctuations and transport properties. The pT -integrated for charged particles probed the centrality dependence of v4,22 and v5,23.