Abstract
We single out the role of fully coherent induced gluon radiation on light hadron production in p-A collisions. The effect has an interesting color structure, as the induced radiation depends on the global color charge of the partonic subprocess final state. Baseline predictions for light hadron nuclear suppression in p-Pb collisions at the LHC are provided, taking into account only the effect of fully coherent energy loss, which proves of the same order of magnitude as gluon shadowing or saturation. This underlines the need to include fully coherent energy loss in phenomenological studies of hadron production in p-A collisions.
Highlights
The wealth of hadron production data in proton-nucleus collisions at collider (RHIC, LHC) energies allows for a detailed study of parton dynamics in cold nuclear matter
In the present study we focus on single inclusive light hadron production
We show that to quarkonium production, the effect of fully coherent energy loss (FCEL) on light hadron production in p-A collisions is sizable, yet with novel features that will be underlined
Summary
The wealth of hadron production data in proton-nucleus collisions at collider (RHIC, LHC) energies allows for a detailed study of parton dynamics in cold nuclear matter. In the PDA, implementing FCEL is achieved by separating the different dijet color states in the hadron production cross section, and performing the rapidity shift for each dijet color state separately [30].
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