General formulation of transverse hydrodynamics

Understand

General formulation of hydrodynamics describing transversally thermalized matter created at the early stages of ultra-relativistic heavy-ion collisions is presented.

• Similarities and differences with the standard three-dimensionally thermalized relativistic hydrodynamics are discussed.
• The role of the conservation laws as well as the thermodynamic consistency of two-dimensional thermodynamic variables characterizing transversally thermalized matter is emphasized.