3D Jet Tomography of the Twisted Color Glass Condensate

Abstract

Jet Tomography is proposed as a new test of Color Glass Condensate (CGC) initial conditions in non-central $A+A$ collisions. The $k_T$ factorized CGC formalism is used to calculate the rapidity twist in the reaction plane of both the bulk low $p_T<2$ GeV matter as well as the rare high $p_T>6$ GeV partons. Unlike conventional perturbative QCD, the initial high $p_T$ CGC gluons are shown to be twisted even further away from the beam axis than the the low $p_T$ bulk at high rapidities $|\eta |>2$. Differential directed flow $v_1(p_T>6,|\eta |>2)$ is proposed to test this novel high $p_T$ rapidity twist predicted by the CGC model.

4 Pages, 3 figures. RevTex

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