Publication : t19/023

Abstract:
The magnitude of anisotropic flow in a nucleus-nucleus collision is determined by the energy density field, ρ(x,y,z) , created right after the collision occurs. Specifically, elliptic flow, v 2 , and triangular flow, v 3 , are proportional to the anisotropy coefficients ε 2 and ε 3 , which are functionals of ρ . We express the mean and the variance of ε 2 and ε 3 as a function of the 1- and 2-point functions of ρ . These results generalize results obtained previously, that were valid only for central collisions, or only for identical point-like sources. We apply them to the color glass condensate effective theory, using the recently derived expression of the 2-point function.

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