We present an ab-initio approach to compute the longitudinal dependence of the initial state by including small-x evolution of the nuclear gluon distributions.
We extend the IP-Glasma model by consistently including JIMWLK rapidity evolution and compute event-by-event rapidity distributions of produced gluons and the early time energy momentum tensor as a function of space-time rapidity and transverse coordinates. We show how the effects of small-x evolution manifest themselves in longitudinal (rapidity) correlations of event-by-event multiplicities and transverse geometry and compare our results to various phenomenological models and experimental observations.
 B. Schenke,S. Schlichting arXiv:1605.07158 (accepted for publication in Phys.Rev. C)
|Preferred Track||Initial State Physics and Approach to Equilibrium|