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Relating the description of gluon production in pA collisions and parton energy loss in AA collisions

Yacine Mehtar-Tani
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Abstract

We calculate the classical gluon field of a fast projectile passing through a dense medium. We show that this allows us to calculate both the initial state gluon production in proton-nucleus collisions and the final state gluon radiation off a hard parton produced in nucleus-nucleus collisions. This unified description of these two phenomena makes the relation between the saturation scale $Q_s$ and the transport coefficient $\hat q$ more transparent. Also, we discuss the validity of the eikonal approximation for gluon propagation inside the nucleus in proton-nucleus collisions at RHIC energy.

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Yacine Mehtar-Tani. 2007-01-22. Relating the description of gluon production in pA collisions and parton energy loss in AA collisions. https://doi.org/10.1103/physrevc.75.034908

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