In this talk I will analyse and compare four models of initial conditions of high energy heavy ion collisions in terms of expectation values and event-by-event fluctuations in the initial transverse energy density profiles from Pb-Pb collisions using a Fourier-Bessel mode expansion for fluctuations. With this expansion scheme I will discuss the expectation values and two-mode correlation functions of the expansion coefficients. The analytically solveable independent point-sources model is compared to an initial-state model based on Glauber theory and two models based on the Color Glass Condensate framework.

Zoom-Link: https://uni-frankfurt.zoom.us/j/92286127005?pwd=R0h4QmhwQk8vMUxhRloyYkFHcWhqQT09