Back-to-Back Correlations of Di-hadrons in dAu Collisions at RHIC

Details Back-to-Back Correlations of Di-hadrons in dAu Collisions at RHIC Back-to-Back Correlations of Di-hadrons in dAu Collisions at RHIC

2011-09-08

arxiv.org/abs/1109.1817v3

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages and 2 figures;v3 revised and updated

Scientific paper

We perform a complete theoretical analysis of the azimuthal angular correlation of two-hadron productions in the forward $dAu$ collisions at RHIC in the saturation formalism, and obtain a very good agreement with the experimental data. It is demonstrated that the suppression and broadening of the away side peak provide a unique signal for the onset of the saturation mechanism at small-$x$ in a large nucleus. We emphasize that future experiments of di-hadron correlations in $pA$ collisions at both RHIC and LHC, and in $eA$ collisions at the planned electron-ion collider, shall provide us with a thorough study and understanding of the strong interaction dynamics in the saturation regime.

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