11th International Conference on Hard and Electromagnetic Probes of High-Energy Nuclear Collisions

We construct an improved 3+1D version of the Trento initial state model, which includes rapidity-dependent fluctuations. The correlation between the fluctuations at different rapidities is controlled by a new parameter. We then use this improved model to study rapidity-dependent observables for ultracentral collisions. It it known that ultracentral flow at midrapidity is sensitive to fluctuations in the initial state, and it is likewise expected that rapidity-dependent flow will be sensitive to the correlation of these fluctuations between different rapidities in the initial state.