A new model of energy density fluctuations in heavy-ion collisions, built from elementary 1/r^2 sources, reproduces CGC one- and two-point functions to leading-log accuracy and explains the centrality dependence of both elliptic and triangular flow.
Energy density of the Glasma
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abstract
The initial energy density produced in an ultrarelativistic heavy ion collision can, in the color glass condensate framework, be factorized into a product of the integrated gluon distributions of the nuclei. Although this energy density is well defined without any infrared cutoff besides the saturation scale, it is apparently logarithmically ultraviolet divergent. We argue that this divergence is not physically meaningful and does not affect the behavior of the system at any finite proper time.
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Primordial fluctuations in heavy-ion collisions
A new model of energy density fluctuations in heavy-ion collisions, built from elementary 1/r^2 sources, reproduces CGC one- and two-point functions to leading-log accuracy and explains the centrality dependence of both elliptic and triangular flow.