(3+1)-dimensional framework for leading-order non conformal anisotropic hydrodynamics

Understand

In this work I develop a new framework for anisotropic hydrodynamics that generalizes the leading order of the hydrodynamic expansion to the full (3+1)-dimensional anisotropic massive case.

• Following previous works, my considerations are based on the Boltzmann kinetic equation with the collisional term treated in the relaxation time approximation.
• The momentum anisotropy is included explicitly in the leading term, allowing for a large difference between the longitudinal and transverse pressures as well as for non trivial transverse dynamics.
• Energy and momentum conservation is expressed by the first moment of the Boltzmann equation.