I will review recent developments in the description of fluctuating initial conditions in heavy ion collisions.
In particular I will describe the boost invariant Yang-Mills framework and the IP-Glasma model, which are valid at high collision energies.
I will describe various observables, ranging from multiplicity distributions and event-by-event distributions of anisotropic flow...
Long before first relativistic CERN-SPS heavy ion collision experiments we have seen models of what may happen to colliding nuclei, with theorists arguing different extreme scenarios: parton transparency, and parton stopping. Similarly we argued about the related mechanism of entropy formation. Today 30 years have passed and these questions continue to be discussed with the same fervor. What...
