Hydrodynamics of anisotropic quark and gluon fluids

Understand

The recently developed framework of anisotropic hydrodynamics is generalized to describe the dynamics of coupled quark and gluon fluids.

• The quark and gluon components of the fluids are characterized by different dynamical anisotropy parameters.
• The dynamical equations describing such mixtures are derived from kinetic theory with the collisional kernel treated in the relaxation- time approximation allowing for different relaxation times for quarks and gluons.
• Baryon number conservation is enforced in the quark and anti-quark components of the fluid, but overall parton number non-conservation is allowed in the system.