Using the Lagrangian hydrodynamic approach [1] we derive the ideal hydrodynamic limit of a fluid with a net polarization of the microscopic degrees of freedom. We discuss the relevance of this dynamics in the light of the experimental study of Hadron (Lambda and vector meson) polarization and other spin-dependent observables in heavy ion collisions, and conclude that our approach is the first term in an effective theory expansion appropriate to study these phenomena quantitatively.
[1] D.Montenegro, G.Torrieri, PRD, in press, arXiv:1604.05291
Hydrodynamics with polarization
