Fluctuating Glasma initial conditions and flow in heavy ion collisions
Abstract
We compute initial conditions in heavy-ion collisions within the Color Glass Condensate (CGC) framework by combining the impact parameter dependent saturation model (IP-Sat) with the classical Yang-Mills description of initial Glasma fields. In addition to fluctuations of nucleon positions, this IP-Glasma description includes quantum fluctuations of color charges on the length-scale determined by the inverse nuclear saturation scale Q_s. The model naturally produces initial energy fluctuations that are described by a negative binomial distribution. The ratio of triangularity to eccentricity is close to that in a model tuned to reproduce experimental flow data. We compare transverse momentum spectra and v_(2,3,4)(p_T) of pions from different models of initial conditions using relativistic viscous hydrodynamic evolution.
Cite
@article{arxiv.1202.6646,
title = {Fluctuating Glasma initial conditions and flow in heavy ion collisions},
author = {Bjoern Schenke and Prithwish Tribedy and Raju Venugopalan},
journal= {arXiv preprint arXiv:1202.6646},
year = {2012}
}
Comments
5 pages, 4 figures, version published in PRL